The Bosch GWG 12V-50 S 12V Brushless Rotary Grinder is a compact and impressively versatile tool that can be used for numerous tasks. The GWG 12V-50 S is versatile for grinding, deburring, sanding, cleaning, and preparing of surfaces as well as removal of welding seams and welding points, especially on metal. The compact design along with the small grip allows for fatigue-free working while the variable-speed trigger switch as well as the different speed modes allow perfect control which delivers precision results. Thanks to its powerful, high-performance brushless motor and high torque, the GWG 12V-50 S Professional gets all grinding jobs done quickly and easily delivering up to 15,000rpm no load speed. It is compatible with various 50mm grinding discs available on the market and 6mm as well as 8mm collets. It also features an innovative user interface with speed as well as battery charge indication. At the heart of this rotary grinder is the brushless motor that allows you to use the tool efficiently. As part of the design, the tool utilizes every bit of battery power when you need, all while reducing the need for ongoing maintenance by reducing the amount of heat generated and working more efficiently. The technology in creating a brushless motor system allows for perfect symmetry between battery power and usage ensuring you get all the power you need, when you need it.