Close
Skip to content

Close

FREE SHIPPING — Milwaukee 4 1/2in. Grinder — 11 Amp, Trigger Grip, Non-Locking, Clutch, Model# 6121-31

Item# 20939
Close
FREE SHIPPING — Milwaukee 4 1/2in. Grinder — 11 Amp, Trigger Grip, Non-Locking, Clutch, Model# 6121-31

Hover over image to zoom

Click image to enlarge

Tap image to enlarge

Only $119.00

Free Shipping (Lower 48 states)

Add to Cart
  • Advanced Airflow system maximizes airflow and reduces debris ingress, improving motor performance and life
  • Electronic clutch extends life of tool and prevents bind-up
  • Overload protection maximizes motor life by reducing motor burn-up
  • 5/8in.-11 spindle thread size
  • Needle bearings
See full description
In Stock Online
Ship it | See Shipping Options
Not Available in Stores
 

Product Summary

The Milwaukee 4 1/2in. 11 Amp Grinder delivers best in class durability and power. High-capacity 120V motor with Advanced Airflow system, overload protection and electronic clutch operates at 11,000 RPM to handle the most demanding grinding jobs. Trigger grip with non-locking trigger switch.

What's Included
  • (1) Grinder, Model# 6121-31
  • (1) Type 27 guard
  • (1) Side handle
  • (1) Spanner wrench
  • (1) Flange set

Features + Benefits

  • Advanced Airflow system maximizes airflow and reduces debris ingress, improving motor performance and life
  • Electronic clutch extends life of tool and prevents bind-up
  • Overload protection maximizes motor life by reducing motor burn-up
  • 5/8in.-11 spindle thread size
  • Needle bearings
  • Trigger grip with non-locking trigger switch
  • 100% tool-free grinder – no wrench or screwdriver required
  • Easy changing of all accessories
  • Easy installation and adjustment of guard without tools
Key Specs
Item# 20939
Brand Milwaukee
Manufacturer's Warranty 5 year limited warranty
Ship Weight 5.4 lbs
Wheel Diameter (in.) 4 1/2
Speed (RPM) 11,000
Spindle Lock Yes
Amps 11
Cord Length (ft.) 8
Switch Type Nonlocking trigger switch
Variable Speed No
Side Handle Yes
Wheel Included No

Customer Reviews

Product Question + Answer
Accessories Frequently Purchased with this Item
We Recommend
FREE SHIPPING — Klutch Angle Grinder Holder FREE SHIPPING — Klutch Angle Grinder Holder
Item# 375354
In Stock Online
Only $25.99

Free Shipping

Add to Cart
FREE SHIPPING — Norton 40-Grit Flap Disc — 4 1/2in. FREE SHIPPING — Norton 40-Grit Flap Disc — 4 1/2in.
Item# 169943
In Stock Online
Only $6.99

Free Shipping

Add to Cart
FREE SHIPPING — Klutch 4.5in. Twisted Knot Wire Wheels — 5-Pk. FREE SHIPPING — Klutch 4.5in. Twisted Knot Wire Wheels — 5-Pk.
Item# 42282
Backordered Online — ships in 2 - 5 Business Days
Only $29.99

Free Shipping

Add to Cart
Safety
3M Metaliks Sport Safety Glasses — Indoor/Outdoor Tinted Lens, Model# 11345-00000
3M Metaliks Sport Safety Glasses — Indoor/Outdoor Tinted Lens, Model# 11345-00000
Item# 174694
In Stock Online
Only $9.99
Add to Cart
Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

Don't Know Your Part Number?

Locating the part number for your item ahead of time will help ensure you quickly receive the correct items.

Find Parts
Parts + Service Available at Stores

Look for stores that have this icon:

Parts + Service

Find Stores

Compare with Most Popular Corded Handheld Grinders

See All Corded Handheld Grinders
 
 
Currently Viewing
 
 
 
 
FREE SHIPPING — Milwaukee 4 1/2in. Grinder — 11 Amp, Trigger Grip, Non-Locking, Clutch, Model# 6121-31 The price is $119.00.
FREE SHIPPING — Milwaukee 4 1/2in. Grinder — 11 Amp, Trigger Grip, Non-Locking, Clutch, Model# 6121-31
5 / 5 (2)
Item# 20939
In Stock Online
Only $119.00

Free Shipping

5 / 5 (2)
Item# 334780
In Stock Online
Only $159.00

Free Shipping

5 / 5 (7)
Item# 33608830
In Stock Online
Only $169.99

Free Shipping

Hide Similarities
Wheel Diameter (in.) 4 1/2 4 1/2 7, 9 6 7, 9
Speed (RPM)
12,000 11,000 6,000 8,500 6,000
Spindle Size (in.) 5/8–11 - - - -
Spindle Lock - Yes Yes Yes Yes
Amps
7.5 11 15 13 15
Cord Length (ft.) 6 1/3 8 8 13 8
Switch Type Paddle Nonlocking trigger switch Trigger (w/o lock-on) Trigger Trigger (w/lock-on)
Variable Speed No No - No -
Side Handle Yes Yes Yes Yes Yes
Wheel Included Yes No Yes No -
Dimensions L x W x H (in.) - - - 12 1/8 x 4 x 3 -