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FREE SHIPPING — Milwaukee M18 FUEL 4 1/2in./5in. Grinder — Tool Only, Slide Switch, Lock-On, Model# 2781-20
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FREE SHIPPING — Milwaukee M18 FUEL 4 1/2in./5in. Grinder — Tool Only, Slide Switch, Lock-On, Model# 2781-20

Item# 41948
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Only $169.99

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Product Summary


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The Milwaukee® M18™ FUEL™ 4 1/2in./5in. Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. This cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The Powerstate™ brushless motor provides up to 10X longer motor life and lower cost of ownership. The M18 RedLithium™ XC 4.0 battery pack (not included) delivers up to 4X more run time and 20% more power. The grinder features Redlink Plus™ Intelligence, the most advanced system of cordless power tool electronics, for maximum performance. The 18V lithium-ion grinder's thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee's legendary high-performance corded grinders for maximum durability on the job. Grinding wheel sold separately.

SAVE MONEY by replacing or adding specific tools that work with the M18 RedLithium™ Lithium-Ion battery and charger you already own. The Milwaukee M18 bare tool system lets you choose the tool you need to get the job done — without buying a complete kit. Add a Milwaukee bare tool to your M18 cordless system today.

What's Included

  • (1) M18 Fuel 4 1/2in./5in. grinder
  • (1) Flange nut
  • (1) Wheel guard
  • (1) Spanner wrench

Features + Benefits

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  • Tool only; battery not included
  • Powerstate™ brushless motor delivers maximum power and up to 10X longer motor life
  • Redlink Plus™ Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • M18 RedLithium™ XC 4.0 battery pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run time and more work over pack life
  • Powerful cordless grinder delivers the power of a corded grinder
  • Durable grinder features the same metal housing and gearing system as legendary high performance corded grinders
  • 100% tool-free grinder lets you make all accessory changes and guard adjustments without a wrench for increased productivity
  • Slide switch reduces user fatigue and can be locked on for extended grinding
  • 15in. length

Key Specs

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Item#41948
Ship Weight6.0 lbs
Product TypeHandheld
Wheel Diameter (in.)4 1/2, 5
Length (in.)15
Speed (RPM)8,500
Switch TypeSlide
Spindle Thread Size5/8 in.–11
Spindle LockYes
Side HandleYes
Variable SpeedNo
Battery IncludedNo
Wheel IncludedNo
Wrench IncludedYes
Case IncludedNo

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FREE SHIPPING — Milwaukee M18 FUEL 4 1/2in./5in. Grinder — Tool Only, Slide Switch, Lock-On, Model# 2781-20 The price is $169.99.
FREE SHIPPING — Milwaukee M18 FUEL 4 1/2in./5in. Grinder — Tool Only, Slide Switch, Lock-On, Model# 2781-20
(Not Yet Rated - New)
Item# 41948
In Stock Online
Only $169.99

+ Ships Free

Hide Similarities
Product Type Bench Handheld Bench Bench Handheld
Wheel Diameter (in.) 6 4 1/2 6 8 4 1/2, 5
Amps 2.1 10 4 4.2 -
Length (in.) 15 1/2 11 1/4 15 16 15
Speed (RPM)
3,560 11,000 3,450 3,600 8,500
HP 1/2 - 5/8 3/4 -
Switch Type On/off Paddle switch w/lock-off - - Slide
Spindle Thread Size 1/2 5/8 in. x 11 1/2 5/8 5/8 in.–11
Spindle Lock No Yes - - Yes
Side Handle - Yes - - Yes
Variable Speed
No - - No No
Cord Length (ft.) 8 - - - -
Battery Included - No No No No
Wheel Included Yes, 2 No Yes, 2 Yes, 2 No
Wrench Included Yes Yes Yes - Yes
Case Included No No No No No
Dimensions L x W x H (in.) 15 1/2 x 15 x 10 - - - -