Top 10 Best 5 Inch Angle Grinder That Will Blow Your Mind

Working with metal, stone, or other tough materials often calls for a reliable tool that can handle cutting, grinding, and polishing tasks effectively. Finding the right angle grinder that offers power and control without being bulky can be a challenge. The best 5 inch angle grinder provides a balanced size, making it easier to maneuver in tight spots while still delivering enough force for demanding jobs.

This type of tool is suitable for both home DIY projects and professional use, offering versatility across different applications. In this review, we will explore several 5 inch angle grinders, focusing on their build quality, performance, safety features, and value for money.

Whether you need a grinder for metalwork, masonry, or general repair, this guide will help you choose a tool that meets your needs with confidence.

Top Picks for Powerful and Versatile Cutting and Grinding Tools

Image	Product	Price
Our Recommended 1	Makita GA5052 4-1/2″ / 5″ Paddle Switch Angle Grinder, with	Check Price
Our Recommended 2	DEWALT Angle Grinder Tool, 4-1/2-Inch to 5-Inch, Trigger Switch (DWE43116)	Check Price
Our Recommended 3	Makita 9565CV 5″ SJS™ High-Power Angle Grinder	Check Price

1. Makita GA5052 4-1/2″ / 5″ Paddle Switch Angle Grinder, with

Experience exceptional power and control with the Makita GA5052 4-1/2 / 5 Paddle Switch Angle Grinder. Designed to handle demanding tasks, it combines robust performance with user-friendly features. Perfect for professionals and DIYers who require reliability and comfort in their tools.

Perfect for professionals and DIYers who require reliability and comfort in their tools.

Built to deliver consistent results, this angle grinder stands out through its thoughtful design and powerful motor. Compact yet efficient, it ensures precise handling for various grinding and cutting operations.

The Makita GA5052 features an 11 AMP motor that drives the wheel at 11,000 RPM. This speed offers ample power suitable for tough materials and challenging projects. Its narrow barrel grip enhances hand comfort and reduces fatigue during extended use.

Its narrow barrel grip enhances hand comfort and reduces fatigue during extended use. Safety is a prime focus with a large paddle switch that supports multiple grip positions, allowing seamless power start control. The grinder also includes a two-stage power lock-off switch, preventing accidental startups without the need for a lock-on power switch.

An integrated tethering loop adds convenience and security when working at heights or on lifts. The build quality reflects Makita’s reputation for durable and reliable tools, while the overall weight balances ease of maneuvering and stability. Operability is straightforward, making it accessible to users with various experience levels.

This angle grinder compares favorably against similar models by combining ergonomic design with strong performance, delivering excellent value for frequent users requiring a dependable power tool.

Pros

• Powerful 11 AMP motor reaching up to 11,000 RPM for demanding applications
• Large paddle switch designed for easy operation from multiple grip positions
• Narrow barrel grip promotes comfort and better control during extended use

Cons

• Does not include a lock-on power switch, which some users may prefer for continuous operation

The Makita GA5052 excels as a versatile angle grinder with a focus on safety and comfort. It suits professionals and hobbyists seeking a reliable tool for grinding, cutting, and finishing tasks.

2. DEWALT Angle Grinder Tool, 4-1/2-Inch to 5-Inch, Trigger Switch (DWE43116)

Experience powerful performance and precision with the DEWALT Angle Grinder Tool, designed to handle demanding cutting and grinding tasks effortlessly. Its versatile design supports 4-1/2-inch to 5-inch discs, making it suitable for various applications around the workshop or job site.

Built for durability and efficiency, this angle grinder delivers high speed and control, helping you complete projects quickly and with confidence. Its lightweight frame reduces user fatigue, optimizing comfort during extended use.

Equipped with a 13 Amp motor, the tool operates at 9,000 RPM to provide fast and consistent cutting power. The innovative Dust Ejection System enhances the grinder’s lifespan by pushing dust and debris away from internal components.

The package includes multiple guards for different grinding tasks and a side handle to improve control and safety during operation. Weighing only 7 pounds, it offers a balanced feel that makes handling less strenuous.

7 pounds, it offers a balanced feel that makes handling less strenuous. Its trigger switch provides easy start-up and shut-down control for safety and precision.

Constructed with robust materials, the angle grinder stands up well to regular use. Suitable for metal fabrication, masonry work, and general grinding, it delivers reliable performance without excess bulk. The DEWALT model compares favorably to similar tools by combining power, durability, and lightweight design in one convenient package.

Pros

• Durable Dust Ejection System protects motor from debris
• Lightweight design reduces user fatigue during extended use
• Includes multiple guard sizes and a side handle for versatility and safety

Cons

• The corded design limits mobility compared to cordless models

Offering a solid blend of power, protection, and usability, the DEWALT Angle Grinder is well-suited for professionals and hobbyists alike. Its thoughtful features and build quality make it a dependable choice for demanding tasks.

3. Makita 9565CV 5″ SJS™ High-Power Angle Grinder

Experience powerful precision with the Makita 9565CV 5 SJS™ High-Power Angle Grinder. Its robust

The innovative SJS technology adds a layer of protection against sudden wheel stops, increasing tool durability.

Designed for demanding tasks, this angle grinder adapts to various applications thanks to its adjustable speed dial. Soft start and constant speed control allow for smooth operation even under heavy loads, making it reliable for both professionals and serious DIYers.

Equipped with a powerful corded electric motor running at 120 volts, the grinder produces up to 4 KW of horsepower, supporting efficient cutting and grinding jobs. Its variable speed control lets users fine-tune the RPM between 2,800 to 10,500, ensuring the right speed for different surfaces or materials.

Its variable speed control lets users fine-tune the RPM between 2,800 to 10,500, ensuring the right speed for different surfaces or materials. The mechanical clutch system (SJS) helps protect gears by allowing the drive shaft to slip when the wheel stops unexpectedly, reducing potential damage.

The tool includes a soft start feature, which minimizes startup jolt and extends gear life, while constant speed control maintains grinding power even when the tool encounters resistance. Its ergonomic design enhances handling comfort for prolonged use. Those requiring a dependable angle grinder for metalwork, construction, or renovation will find this model excellent for precise, smooth results.

The sturdy build and engineered features translate into long-lasting performance and value beyond standard grinders.

Pros

• Powerful 13.0 AMP motor with adjustable speeds
• SJS mechanical clutch system protects motor and gears
• Soft start and constant speed control enhance durability and performance

Cons

• Heavier than some lightweight cordless angle grinders

The Makita 9565CV offers a well-balanced combination of power, control, and durability. It stands out in the category of 5-inch angle grinders, particularly because of its innovative clutch protection and versatile speed settings. This grinder is a smart choice for anyone needing dependable performance with professional-grade features.

This grinder is a smart choice for anyone needing dependable performance with professional-grade features.

4. BOSCH GWS14-50 5 In. Angle Grinder | Compact, Powerful 13-Amp

Experience powerful performance packed into a compact design with the BOSCH GWS14-50 5 In. angle grinder. Crafted to handle diverse grinding and cutting tasks, it delivers precision and durability for various workshop needs.

Crafted to handle diverse grinding and cutting tasks, it delivers precision and durability for various workshop needs. Lightweight yet robust, it offers exceptional control during extended use.

The combination of efficient motor cooling and safety features makes this angle grinder a reliable choice for both professionals and hobbyists. Its thoughtful engineering balances power with user comfort to enhance overall productivity on the job.

The BOSCH GWS14-50 features a 13-amp motor capable of reaching 11,500 rpm, providing strong torque for effective grinding and cutting. This powerful engine supports heavy-duty applications while maintaining smooth operation.

Enhanced cooling through rear air inlets protects the motor from dust and overheating, prolonging tool life. Safety is prioritized with KickBack Control, soft start, and restart protection, offering added peace of mind. Its slide switch design allows for easy operation and increased convenience.

Its slide switch design allows for easy operation and increased convenience.

Built with durable materials, the grinder withstands demanding work environments and delivers consistent results. Its versatile nature suits metalworkers, fabricators, and DIYers needing a dependable grinding tool. Overall, it combines efficiency, safety, and comfort for great value in its category.

Pros

• Powerful 13-amp motor with high speed of 11,500 rpm
• Compact and lightweight design for superior maneuverability
• Built-in safety features including KickBack Control and soft start

Cons

• Requires corded electric power, limiting mobility

The BOSCH GWS14-50 stands out as a strong contender for anyone seeking a reliable and efficient 5-inch angle grinder. It delivers a solid balance between power, safety, and manageable size, making it an excellent option compared to similar models in its class.

5. Hoteche 5-Inch Angle Grinder 11-Amp Heavy Duty Variable Speed Power

Experience powerful and precise grinding with the Hoteche 5-Inch Angle Grinder. Designed to tackle demanding cutting and polishing tasks, this tool combines a robust motor with variable speed control for versatile performance.

Its compatibility with standard 5-inch wheels and quick-change discs adds convenience to various projects. Suitable for professionals and DIY users, it delivers reliable results in metal, stone, and wood work.

The Hoteche 5-Inch Angle Grinder features an 11-amp motor that powers through heavy-duty tasks smoothly. Variable speed control ranging up to 11,000 RPM lets users adjust the pace to suit metal grinding, stone polishing, or wood sanding.

This adaptability enhances precision and efficiency in every application.

Using standard 5-inch wheels and quick-change discs, it handles different materials with ease. Its corded electric design operates on a steady 110-120V supply, ensuring consistent power at all times. The 1300-watt motor drives efficient cutting, grinding, and surface preparation tasks without slowdown.

Built with ergonomics in mind, the lightweight frame and comfortable grip reduce user fatigue during extended use. Robust construction allows it to withstand tough job site conditions, promising durability and long-term service. This angle grinder is ideal for contractors and home workshop users who demand solid performance and control.

This angle grinder is ideal for contractors and home workshop users who demand solid performance and control.

Pros

• Powerful 11-amp motor delivering strong heavy-duty grinding
• Variable speed control for precision across multiple materials
• Ergonomic design reduces fatigue during prolonged use

Cons

• Corded operation limits mobility compared to cordless models

With its blend of power, speed range, and durable build, the Hoteche 5-Inch Angle Grinder offers excellent value for demanding cutting and grinding tasks. It compares well against similar tools by providing strong consistent performance combined with user comfort and versatility.

6. VEVOR Angle Grinder, 5″ Electric Grinder Power Tool, 10Amps 10000RPM

Experience powerful and precise grinding with the VEVOR 5 Electric Angle Grinder. Designed to tackle various cutting, grinding, and polishing tasks, this tool delivers consistent high-speed performance for professional and DIY projects alike.

Its compact design and robust motor make it a versatile addition to any toolbox.

Built for stability and control, the VEVOR angle grinder combines safety features with ergonomic handling. Whether working on metal, stone, or wood surfaces, users benefit from efficient operation paired with user comfort. This angle grinder suits both occasional users and those needing reliable power for frequent use.

Powered by a 1200W motor, this angle grinder maintains a steady speed of 10,000 RPM, ensuring fast and effective results. Its 230° adjustable guard offers excellent protection by blocking flying debris. The adjustable guard adds an important safety element, making work environments safer.

The adjustable guard adds an important safety element, making work environments safer.

The tool supports 5-inch discs, offering flexibility across a variety of tasks, from grinding and cutting to rust removal. Although discs are not included, the wide compatibility allows users to select the right disc for their specific needs. Its lightweight frame weighs just

Its lightweight frame weighs just 2 pounds, minimizing fatigue during extended work sessions.

Comfort receives priority through an ergonomic rubber grip and a 2-position side handle that enhances stability for both left- and right-handed users. The safety trigger switch prevents accidental startups, and a 56-foot power cord offers freedom of movement.

Durable construction and easy handling add value for workshops or home use.

Pros

• High-powered 1200W motor for strong performance
• Adjustable 230° guard ensures enhanced safety
• Ergonomic design with lightweight body and rubber grip

Cons

• Disc not included, requiring separate purchase

The VEVOR 5 Angle Grinder balances power, safety, and comfort effectively, making it a reliable tool for various grinding and cutting applications. For users seeking a durable and efficient grinder without complex features, this model provides excellent value and practical performance.

7. DEWALT Angle Grinder, One-Touch Guard, 4-1/2 -Inch (DWE4011)

Experience efficient grinding and versatile performance with the DEWALT Angle Grinder, featuring a powerful 7 amp motor that delivers up to 12,000 rpm. Designed to handle tough tasks, this tool ensures faster material removal with enhanced overload protection.

Designed for convenience, the one-touch guard allows quick adjustments without any tools. The hex wrench design replaces the traditional spanner wrench, fitting into most toolboxes for easy access.

Additionally, the quick-change wheel release simplifies wheel swaps, eliminating the need for extra wrenches and minimizing downtime.

The DEWALT Angle Grinder boasts a sturdy and slim ergonomic body, improving control and reducing fatigue in prolonged use. Its 5/8-inch spindle thread accepts a broad variety of 4-1/2-inch accessories, enhancing versatility for different grinding, cutting, and polishing jobs.

The 2-position removable side handle offers additional comfort and stability, adapting to user preferences and project requirements.

Operating on corded electric power with 120 volts ensures reliable and consistent performance. At

4 horsepower, the grinder is well suited for professionals and DIYers needing a dependable tool for metal fabrication or masonry work. Its construction balances durability and user-friendly features, maximizing value without sacrificing power or control.

Pros

• High-speed 12,000 rpm motor for efficient material removal
• Tool-free one-touch guard adjustment enhances usability
• Quick-change wheel release enables fast and easy accessory swaps

Cons

• Limited to 4-1/2-inch discs, which may restrict some heavy-duty applications

Built for comfort, power, and adaptability, the DEWALT Angle Grinder delivers strong performance for a range of tasks. It stands out through its user-centric design features that simplify operation and maintenance.

8. KSEIBI 5-Inch Concrete Angle Grinder Kit

Experience powerful performance with the KSEIBI 5-Inch Concrete Angle Grinder Kit. Designed for demanding jobs, its 5-amp motor delivers rapid cutting and grinding, making tough tasks manageable.

The pure-copper motor windings provide efficient, cooler operation for longer work sessions without overheating.

This all-in-one kit arrives fully equipped for concrete surface preparation. Included are diamond and cutting wheels, dust-extraction shroud, multiple handles, and a sturdy carry bag.

The angle grinder handles multiple applications with ease, from cutting marble and ceramic tiles to grinding concrete and brick. Its adaptable 3-position auxiliary handle supports different grip styles, enhancing comfort and control during long use. A lock-on button secures the speed, reducing hand fatigue over extended periods.

A lock-on button secures the speed, reducing hand fatigue over extended periods.

With all-metal gearing and replaceable carbon brushes, its build quality contributes to a longer tool life. The adjustable wheel guard helps deflect debris, while the spindle lock allows for quick, tool-free wheel changes. This unit offers versatility, durability, and efficiency fit for professionals and DIY users seeking reliable equipment.

This unit offers versatility, durability, and efficiency fit for professionals and DIY users seeking reliable equipment.

Pros

• Robust 11.5-amp motor delivers up to 8,500 RPM for fast cutting
• Dust-extraction shroud connects to vacuum for cleaner operations
• Complete kit includes wheels, handles, guard, and carry bag

Cons

• Slightly heavier than some compact models, which may affect portability

Offering strong motor power, versatile attachments, and dust control, the KSEIBI 5-Inch Concrete Angle Grinder Kit provides excellent value. Its mix of functionality and durability makes it suitable for a wide range of home improvement and professional projects.

9. Angle Grinder 4-1/2″/5″ 11000 RPM 11 Amp

Experience powerful performance and reliable operation with the Angle Grinder 4-1/2/5 11000 RPM 11 Amp. Designed for demanding tasks, it offers rapid speed and sturdy construction to handle various cutting and grinding jobs.

This tool combines efficiency with ease of use to support both professional and DIY projects.

Equipped with an 11 Amp motor, the grinder delivers a high no-load speed of 11,000 RPM to cut through metal, stone, and other materials smoothly. Its corded electric power source ensures consistent energy supply without the hassle of recharging.

The ergonomic design provides comfortable handling and control, reducing user fatigue during extended work periods. Solid build quality enhances durability, making the tool suitable for heavy-duty environments.

Its straightforward operation allows beginners to use it effectively while still meeting professionals’ rigorous demands. Compared to other models in its class, this angle grinder balances power and maneuverability well.

Maintenance is minimal, and the unit’s robust materials help prolong its lifespan, contributing to long-term value and satisfaction.

Pros

• High-speed 11,000 RPM motor for fast cutting and grinding
• Compatible with both 4-1/2″ and 5″ discs for versatile use
• Ergonomic design ensures comfortable handling during long jobs

Cons

• Requires a nearby power outlet due to corded design

The Angle Grinder 4-1/2/5 offers dependable power and versatility for a range of cutting tasks. Its robust motor and user-friendly design make it a solid choice for users seeking an efficient and durable tool.

10. Metabo HPT Variable Speed Angle Grinder 5 In, WEV 15-125

Designed to handle tough coatings and concrete surfaces, the Metabo HPT Variable Speed Angle Grinder 5 In, WEV 15-125 offers exceptional power and precision. German engineering meets durability in this tool, making it a reliable choice for professionals working on heavy-duty surface preparation.

Its versatility makes it suitable for various materials, providing smooth operation and control across different tasks. This grinder blends strength and ergonomics for demanding jobs, delivering consistent results every time.

Featuring a robust 5 AMP motor, the grinder delivers ample torque and overload capacity, supporting fast material removal.

The compact 5-inch size offers ease of handling in tight spaces without sacrificing power.

The variable speed control ranges from 2800 to 9600 RPM, allowing precise adjustment for different applications. VTC electronics keep the speed steady even under load, which is essential when working with tougher materials. Protection features like soft start, overload, and power interruption safeguards enhance safety during operation.

Equipped with an S-Automatic safety slip clutch, the tool minimizes kickback, helping to maintain user control and reduce fatigue. Ergonomic design elements include a vibration-dampening handle, 90° rotatable gear housing, and a tool-free adjustable guard, ensuring comfort during extended use.

The lock-on switch supports continuous operation, ideal for lengthy projects.

This angle grinder fits the needs of concrete contractors, restoration professionals, and anyone requiring a durable, high-performance tool. Its build quality and consistent power output make it a trustworthy addition to any professional toolkit.

Pros

• Powerful 13.5 AMP motor for heavy-duty performance
• Variable speed control with consistent RPM under load
• Safety features including soft start and slip clutch

Cons

• Corded design limits portability compared to cordless models

The Metabo HPT Variable Speed Angle Grinder 5 In balances power, control, and comfort, making it suitable for professional applications. Its attention to safety and ergonomic features provide confidence during demanding tasks.

Things to Consider Before Buying the Best 5 Inch Angle Grinder

Safety features

Automatic shutoff mechanisms play a significant role in enhancing the overall control and protection during use by stopping the grinder quickly in case of overload or sudden blockage. The ability to adjust the guard provides an extra layer of protection, allowing users to position it effectively to shield from sparks and debris while offering flexibility for different cutting or grinding angles. Lockon switches contribute to comfort and convenience by allowing continuous operation without the need to keep the trigger pressed, while trigger controls maintain precise power delivery and enable quick stops when required.

Lockon switches contribute to comfort and convenience by allowing continuous operation without the need to keep the trigger pressed, while trigger controls maintain precise power delivery and enable quick stops when required. Together, these elements contribute to a safer and more user-friendly operation, especially during extended periods of work or when handling tougher materials.

Ergonomics and design

The balance and weight of this tool play a major role in making extended use less tiring and more controlled. A well-weighted grinder that feels sturdy yet not overly heavy improves maneuverability during detailed work or longer projects.

The way the handle is shaped also contributes significantly to comfort and precision. A design that fits naturally in the hand with a non-slip grip helps maintain control and reduces hand strain. Features that reduce vibration are particularly valuable as they lessen fatigue and enable smoother operation, especially during heavy-duty tasks.

These vibration control elements often include specialized damping materials or isolated handles that absorb shocks, making the overall experience more comfortable and safer for prolonged usage.

Durability and build quality

The material of the casing and internal components plays a significant role in the longevity and reliability of a 5 inch angle grinder. Models featuring casings made from high-quality metals or reinforced plastics tend to resist impact and wear better during heavy use.

Trustworthy brands often back their products with solid warranties that reflect confidence in the grinder’s construction and offer peace of mind for users. Brand reputation also provides insight into consistent product quality and customer support, which are valuable when considering how well a tool might withstand regular demanding tasks.

Disc size and speed

Choosing a grinder that fits 5 inch discs brings the benefit of compatibility with a wide range of cutting and grinding accessories designed for this popular size. This allows for versatility in various tasks such as metal fabrication, masonry work, and surface preparation.

The revolutions per minute, or RPM, play a significant role in determining how efficiently the grinder cuts or smooths materials. Higher RPM models are suited for faster cutting and clean finishes, while machines with adjustable speeds provide the flexibility to work safely with abrasive materials or achieve detailed grinding work.

Combining a suitable disc size with appropriate speed settings can greatly enhance both performance and safety during use.

Power and motor type

The wattage and amperage ratings of a 5 inch angle grinder play a major role in determining its strength and efficiency. Models with higher wattage or amperage deliver more power, allowing them to handle tougher cutting and grinding jobs with ease.

Such ratings affect how quickly the tool can complete tasks and influence its ability to maintain steady performance under continuous load. Regarding motor types, brushless and brushed motors each come with their distinct characteristics. Brushless motors tend to offer better efficiency, generate less heat, and require less maintenance since they do not have carbon brushes that wear out over time.

This often translates into longer tool life and more consistent power delivery. On the other hand, brushed motors typically come at a lower cost and can be easier to repair or replace. Performance-wise, brushless motors generally provide smoother operation and improved durability, especially useful in demanding environments or for frequent use.

Depending on the typical applications such as cutting, grinding, or polishing, choosing between these motor types and understanding wattage and amperage ratings can help match the tool’s capabilities to specific tasks, ensuring both reliability and longevity in various work conditions.

Additional features and accessories

Included blades or discs commonly come with a 5 inch angle grinder, offering immediate usability for tasks like cutting, grinding, and polishing. These tools often feature soft start and overload protection mechanisms, which contribute to smoother operation and help prevent motor damage during heavy-duty use. Compatibility with aftermarket attachments broadens the tool’s versatility, allowing users to customize their angle grinder for specialized jobs such as sanding or wire brushing.

Compatibility with aftermarket attachments broadens the tool’s versatility, allowing users to customize their angle grinder for specialized jobs such as sanding or wire brushing. This combination of ready-to-use discs, safety features, and adaptability makes the 5 inch angle grinder suitable for various applications ranging from home maintenance to light construction work.

People Also Asked

What Are The Best Accessories And Attachments To Use With A 5 Inch Angle Grinder?

The best accessories for a 5-inch angle grinder include grinding wheels, cutting discs, wire brushes, and flap discs, which enhance versatility for tasks like grinding, cutting, sanding, and polishing. Choosing attachments compatible with your specific material and project ensures optimal performance and safety.

What Are The Key Features To Look For In The Best 5 Inch Angle Grinder?

The best 5-inch angle grinder should have a powerful motor, adjustable speed settings, and a sturdy, ergonomic design for comfortable handling. Additionally, look for safety features like a protective guard and a reliable safety switch.

How Does A 5 Inch Angle Grinder Compare To Other Sizes In Terms Of Performance And Versatility?

A 5-inch angle grinder offers a balanced combination of power and maneuverability, making it more versatile for a wide range of tasks compared to smaller models. It provides sufficient cutting and grinding capacity while being easier to handle than larger, heavier grinders.

Which Brands Offer The Most Reliable 5 Inch Angle Grinders?

Brands like Bosch, Makita, and DeWalt are known for offering the most reliable 5-inch angle grinders due to their durable build and consistent performance. These manufacturers provide tools favored by professionals and DIY enthusiasts alike for quality and longevity.

What Safety Tips Should I Follow When Using A 5 Inch Angle Grinder?

When using a 5-inch angle grinder, always wear protective gear such as safety goggles, gloves, and hearing protection to prevent injury from sparks and debris. Additionally, ensure the grinder’s guard is in place, maintain a firm grip, and avoid loose clothing or accessories that could get caught in the tool.

Conclusion

Choosing the best 5 inch angle grinder involves balancing power, durability, and ease of use. These grinders typically offer a good combination of maneuverability and performance, making them suitable for both DIY projects and professional tasks. While they may not handle the largest jobs like bigger models, they excel in precision grinding, cutting, and polishing on a smaller scale.

While they may not handle the largest jobs like bigger models, they excel in precision grinding, cutting, and polishing on a smaller scale. Some units may have minor drawbacks like weight or vibration, but many models incorporate user-friendly features to minimize discomfort during extended use. This size is particularly well-suited for users seeking versatility without sacrificing control.

Ultimately, the best 5 inch angle grinder provides dependable performance for a wide range of applications, making it a practical choice for those looking to enhance their tool collection with a reliable and efficient grinder.