Milwaukee Electric - M12 Fuel 1/4 INCH Right Angle DIE Grinder 2 Batter

Amazon

Generates 0.4 HP motor output Greater mobility & access 4-mode RPM control with responsive variable-speed trigger precision allows users to alter the speed based on the application POWERSTATE Brushless Motor Technology provides more power, more run-time, and longer life

Radwell UK

CORDLESS DIE GRINDERS; VOLTAGE: 12.00 ; NO-LOAD RPM: 20000 ; SPEED (RPM): 20000 ; SWITCH TYPE: TRIGGER ; BATTERIES INCLUDED: YES ; BATTERY CHEMISTRY: LITHIUM-ION (MOQ=1, PKG QTY=1)3485-22