Bosch GWG12V-20S brushless motor tool; warning text visible.
Bosch GWG12V-20S cordless grinder with ergonomic handling, user interface with battery charge, tool status, speed level indication, efficient brushless motor, protection paddle switch, variable-speed switch, and innovative spindle lock.
GWG12V-20SN
GWG12V-20SN
Bosch electric polisher, black, red, and blue
Bosch GWG12V-20S brushless motor tool with a warning to read the instruction manual and use accessories 2" (50 mm) or less in diameter and rated at least 16,000/min.
Bosch GWG12V-205 brushless motor angle grinder being used to cut a rusted area of a car.
Bosch GWG12V-20S brushless motor tool being used to cut metal near car engine, emitting sparks; includes safety warning.
Bosch GWG12V-20S cordless angle grinder cutting an automotive component, with sparks flying.
Bosch brushless motor tool being used to work on metal
Bosch 12V MAX LIMITED WARRANTY, 3 YEAR Tool. Effective 2/1/25, all 12V Max products are covered by this updated warranty. For updated terms, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99.

GWG12V-20SN Professional

Cordless Die Grinders

12V Max Brushless 1/4 In. Right Angle Die Grinder

  • Innovative user interface and speed buttons – provides tool, battery and speed status as well as five speed options at your fingertips
  • Variable speed trigger – keeps the user in control in a variety of grinding applications
  • Compact design – offers small grip size for easy grinding in tight areas
  • Lightweight and ergonomic – helps to reduce fatigue and maximize productivity
  • Spindle lock – allows for quick and easy accessory swaps
  • Brushless motor – maximizes battery runtime in extended applications
  • Brake system – helps to stop the wheel quickly
  • Constant electronics - provide for uniform performance even at the highest speed levels
  • Overload protection – turns the tool off if it gets into a bind
  • Bosch 12V cordless power tools are covered by a three year limited warranty - for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99
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GWG12V-20SN Professional

Technical data

The most important data

Height in
2 "
Length in
7.5 "
Variable Speed
Yes
Weight
1.2 lb
Weight (lbs.)
1.2
Width in
4.5 "
Works With
Compatible with all 12V Bosch batteries., Rubber Backing Pad, GWG050 (2610074406)
Includes
(1) GWG12V-20S 12V Max Brushless 1/4 In. Right Angle Die Grinder
(1) 1/4 In. Collet
(1) Collet Nut
(1) 17mm Wrench

GWG12V-20SN Professional: Further information

Product Highlights

The GWG12V-20SN 12V Max 1/4 In. Right Angle Die Grinder was engineered with both comfort and control in mind. Its multifunctional user interface allows for five speed level changes at the touch of a button. Color indicator lights provide a quick and easy way to check the battery charge, speed level and tool status while using the grinder. The variable speed trigger offers enhanced control, providing smooth, steady acceleration tailored to every application. The right angle die grinder is compact and has a small grip size, allowing for grinding even in tight quarters. Lightweight at only 1.2 Lbs. (bare tool) and ergonomic, it’s designed to help fight fatigue on the job. An innovative spindle lock facilitates swift accessory swaps, keeping downtime to a minimum. The grinder is equipped with a brake system that provides for a rapid stop of the wheel, as well as overload protection that turns the tool off if it gets into a bind.