Delivering the power and performance professionals demand, Bosch's AG40-11PD High-Performance Angle Grinder is the grinder of choice. Featuring the Electronics System Plus package to help protect the grinder for damage during high powered use, the AG40-11PD offers not only the reliability of a Bosch grinder, but the comfort as well. Multi-grip paddle switch and ergonomic design make it easy to handle and control, delivering the best results. Multi-grip paddle switch offers multiple gripping positions for optimal comfort and control High-performance motor delivers the Power and performance demanded by professionals Bosch Electronics System Plus advanced electronic package protects motor and shuts down tool in a sudden bind situation No lock-on switch turns grinder off when the switch is released for added safety Improved carbon brushes offer more than double the lifetime of predecessor brushes 4-1/2 in. 11 Amp High-Performance Angle Grinder w/ No Lock-On Paddle Switch - AG40-11PD Guard Auxiliary Handle Flange Kit Spanner Wrench Abrasive Wheel 1 Year Limited Factory Warranty Amperage : 11 RPM : 11, 500 Spindle Thread : 5 / 8 in. - 11 Switch Settings : Dead Man Switch Type : Paddle Voltage : 120V Wheel Diameter : 4-1 / 2 in.