Makita DGA504Z 18V brushless angle grinder 125mm with 1 x 5Ah battery The Makita DGA504 is equipped with a highly enhanced brushless DC motor. A built-in controller changes the cutting speed automatically according to load condition, enabling users to obtain high speed rotation on light duty application/ High torque on heavy duty application. Features constant speed under load - automatically changes the cutting speed according to load condition for an optimum performance high power motor Anti-restart function - prevents accidental start up for safety soft start feature battery fuel gauge LED's - also warns that Anti-restart function and current limiter have been activated rubberised soft grip electronic current limiter for overload protection slide switch conveniently located for one hand operation XPT - extreme protection technology - for use in outdoor applications or harsh environments comes with 1 x DGA504Z angle grinder 1 x BL1850 5Ah battery product specifications bar Code 0088381683920 Voltage 18V part No DGA504Z No load speed 8, 500 rpm vibration K factor 1.5 m/sec² Max wheel diameter 125 mm noise K factor 3 dba) noise sound pressure 79 dba) Max wheel thickness 6 mm Bore diameter 22.23 mm total shipping weight 3kg