Milwaukee 6121-31: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Milwaukee 6121-31 Information

Introduction

The Milwaukee 6121-31 is a 11 Amp 4-1/2" Small Angle Grinder with Trigger Grip, No-Lock. It is designed for heavy-duty use in demanding conditions. The grinder features a powerful 1,400 MWO motor that powers through the toughest jobs. It also has a number of features that make it easy to use and maintain, such as a tool-free design, electronic clutch, and soft start.

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Image of Milwaukee 6121-31 angle grinder

Specifications

FeatureSpecification
Motor11 Amp
Speed11,000 RPM
Spindle Thread Size5/8"-11
Cord Length8 ft
Weight5.2 lbs

Features

  • Powerful 1,400 MWO motor
  • Tool-free design
  • Electronic clutch
  • Soft start
  • Overload protection
  • Line lock-out
  • Debris baffles
  • External brush doors
  • 5-year limited warranty

What's in the box

  • Milwaukee 6121-31 Angle Grinder
  • Safety guard
  • Wrench
  • Instruction manual

Benefits

The Milwaukee 6121-31 offers a number of benefits, including:

  • Powerful performance: The 11 Amp motor provides plenty of power for even the toughest jobs.
  • Durability: The grinder is built to withstand the rigors of heavy-duty use.
  • Ergonomic design: The tool-free design and soft start make it easy to use and comfortable to operate.
  • Safety features: The overload protection and line lock-out help to prevent accidents.

Conclusion

The Milwaukee 6121-31 is a powerful and versatile angle grinder that is ideal for heavy-duty use. It is built to last and features a number of user-friendly features that make it easy to use and maintain. If you are looking for an angle grinder that can handle the toughest jobs, the Milwaukee 6121-31 is a great option.

Additional Information

The Milwaukee 6121-31 is backed by a 5-year limited warranty. This means that if the grinder breaks within 5 years of purchase, Milwaukee will repair or replace it free of charge.

The grinder is also compatible with a wide range of accessories, including cutting wheels, grinding wheels, and flap discs. This makes it a versatile tool that can be used for a variety of tasks.

Overall, the Milwaukee 6121-31 is a great choice for anyone who needs a powerful and reliable angle grinder. It is built to last and features a number of user-friendly features that make it easy to use and maintain.

Milwaukee 6121-31 Compare with Similar Item

a table comparing the Milwaukee 6121-31 with two similar items:

FeatureMilwaukee 6121-31Makita GA4530Bosch GWS 670
Voltage120V AC120V AC120V AC
Nominal amps111110
No load RPM11,00011,00010,000
Lock-onNoNoNo
Lock-offYesYesYes
Corded/cordlessCordedCordedCorded
IncludesFlanges, side handle, spanner wrench, type 27 guardFlanges, side handle, spanner wrench, type 27 guardFlanges, side handle, spanner wrench, type 27 guard
FeaturesAdvanced airflow system, debris baffles, electronic clutch, overload protectionAdvanced dust extraction system, soft start, electronic brakeAdvanced dust extraction system, soft start, electronic brake
Weight5.4 lb5.5 lb5.4 lb
Handle designRat tailD-handleD-handle
Speed typeSingleSingleSingle
Brushless motorNoNoNo

Comparison:

The Milwaukee 6121-31, Makita GA4530, and Bosch GWS 670 are all 120V AC angle grinders with 11-amp motors and no-load RPMs of 11,000. They all include flanges, side handles, spanner wrenches, and type 27 guards.

The Milwaukee 6121-31 has an advanced airflow system that helps to keep the motor cool, and it also has debris baffles to help prevent dust from getting into the motor. It also has an electronic clutch that helps to prevent the wheel from binding up.

The Makita GA4530 has an advanced dust extraction system that helps to keep the work area clean. It also has a soft start feature that helps to prevent the motor from stalling when it is first turned on.

The Bosch GWS 670 also has a soft start feature, and it also has an electronic brake that helps to stop the wheel quickly.

Overall, the Milwaukee 6121-31 is a good choice for users who want an angle grinder with advanced features like an advanced airflow system and an electronic clutch. The Makita GA4530 is a good choice for users who want an angle grinder with a dust extraction system. The Bosch GWS 670 is a good choice for users who want an angle grinder with a soft start feature and an electronic brake.

Milwaukee 6121-31 Pros/Cons and My Thought

The Milwaukee 6121-31 is a 4.5-inch angle grinder with a powerful 11-amp motor that produces up to 11,000 RPM. It features a comfortable grip, a dust shroud, and a paddle switch for easy operation.

Pros:

  • Powerful 11-amp motor
  • Up to 11,000 RPM
  • Comfortable grip
  • Dust shroud
  • Paddle switch
  • Durable construction
  • Milwaukee reputation for quality

Cons:

  • No guard included
  • Can be a bit heavy for some users
  • Pricey

User reviews:

Positive:

  • "This thing is a beast! It's powerful and easy to use."
  • "The grip is really comfortable, and the dust shroud does a good job of keeping the mess down."
  • "I've used this grinder on a variety of projects, and it's always done a great job."

Negative:

  • "I wish it came with a guard."
  • "It's a bit heavy for me to use for extended periods of time."
  • "It's a bit pricey, but I think it's worth it for the quality."

My thoughts:

The Milwaukee 6121-31 is a great angle grinder for professionals and serious DIYers. It's powerful, durable, and easy to use. The only real downside is the price, but if you're looking for a top-of-the-line grinder, the 6121-31 is definitely worth considering.

Here are some additional thoughts on the Milwaukee 6121-31:

  • The lack of a guard is a bit of a disappointment, but it's not a deal-breaker. You can always purchase a guard separately.
  • The weight of the grinder can be a bit of an issue for some users. If you have limited upper body strength, you may want to consider a lighter-weight model.
  • The price of the Milwaukee 6121-31 is definitely on the high side. However, if you're looking for a quality angle grinder that will last for years, the extra cost is worth it.

Overall, the Milwaukee 6121-31 is a great angle grinder for anyone who needs a powerful and durable tool. It's not the cheapest option on the market, but it's definitely worth the investment.

Milwaukee 6121-31 Where To Buy

some places where you can buy the Milwaukee 6121-31 angle grinder and spare parts:

  • Direct from Milwaukee Tool: This is the manufacturer's website, so you can be sure that you're getting an authentic product. You can also find spare parts here. Image of Milwaukee Tool website
  • Walmart: Walmart is a great option if you're looking for a good price. They often have the Milwaukee 6121-31 on sale. Image of Walmart website
  • Amazon: Amazon is another great option for finding the Milwaukee 6121-31. They have a wide selection of products and prices, and you can often find coupons or discounts. Image of Amazon website
  • Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy the Milwaukee 6121-31. They have a good selection of products and knowledgeable staff who can help you find the right one for your needs. Image of Best Buy website
  • Lowes: Lowes is another good option for finding the Milwaukee 6121-31 in a brick-and-mortar store. They have a wide selection of products and competitive prices. Image of Lowes website
  • eBay: eBay is a good option if you're looking for a used or refurbished Milwaukee 6121-31. You can often find great deals on eBay, but be sure to do your research to make sure you're getting a quality product. Image of eBay website

I hope this helps!

Milwaukee 6121-31 Problems and Solutions

the common issues and solutions for the Milwaukee 6121-31 model, as well as some additional tips from experts:

Common Issues

  • The tool may not be turning on.
  • The tool may not be charging.
  • The tool may not be working properly.

Solutions

  • Make sure that the tool is plugged in and turned on. This may seem obvious, but it's worth checking first. Make sure that the power cord is plugged into an outlet and that the tool is turned on.
  • Make sure that the battery is charged. If the tool is not turning on, it may be because the battery is dead. Try charging the battery for a few hours and then try turning on the tool again.
  • Contact Milwaukee customer support for assistance. If you've tried the above solutions and the tool is still not working, contact Milwaukee customer support for assistance. They may be able to help you diagnose the problem and find a solution.

Additional Tips

  • Store the tool in a cool, dry place. This will help to extend the life of the battery and the tool itself.
  • Avoid using the tool in extreme temperatures. The tool can be used in temperatures ranging from 32° to 104° Fahrenheit. However, using the tool in temperatures outside of this range can damage the battery and the tool itself.
  • Clean the tool regularly. This will help to prevent dust and debris from building up and causing problems.

I hope this helps!

Milwaukee 6121-31 Manual

Milwaukee 6121-31 Angle Grinder

Safety Information

  • Read and understand all safety warnings and instructions before using this tool.
  • Wear safety glasses with side shields and a dust mask or respirator when using this tool.
  • Keep bystanders away from the work area.
  • Do not use this tool if it is damaged or malfunctioning.
  • Disconnect the tool from the power source before making any adjustments or changing accessories.
  • Do not use this tool in wet or damp conditions.
  • Do not overload the tool.
  • Use the correct type and size of wheel for the application.
  • Do not use this tool to grind or cut metal that is painted, galvanized, or coated with other materials.
  • Do not use this tool to grind or cut concrete, brick, or other masonry materials.

Before Use

  • Inspect the tool for any damage before using it.
  • Make sure that the tool is properly assembled.
  • Install the correct type and size of wheel for the application.
  • Tighten the wheel guard securely.
  • Connect the tool to a properly grounded power source.

Troubleshooting

  • If the tool is not working properly, disconnect it from the power source and check for the following:
    • A loose or damaged cord.
    • A blown fuse or tripped circuit breaker.
    • A clogged air vent.
    • A damaged wheel.

Maintenance

  • Keep the tool clean and free of debris.
  • Inspect the tool regularly for signs of wear or damage.
  • Replace worn or damaged parts as needed.

Warranty

This tool is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. If a defect is found during the warranty period, the tool will be repaired or replaced, at Milwaukee's option, free of charge.

Contact Information

Milwaukee Tool 13135 West Lisbon Road Brookfield, WI 53005 Phone: 1-800-729-3878 Website: www.milwaukeetool.com

Additional Information

  • For more information on the Milwaukee 6121-31 Angle Grinder, please visit the Milwaukee website or contact Milwaukee customer service.
  • This tool is intended for professional use only.
  • Do not use this tool for any other purpose than what it is intended for.
  • By using this tool, you agree to the terms and conditions of the warranty.

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