Hitachi G12SS2 5.1-Amp 4-1/2-Inch Angle Grinder Powerful 5.1 amp motor with improved design creates better cooling efficiency that ensures high motor durability and performance At just 4 lbs, the high power-to-weight ratio allows for optimal control and maneuverability Class leading overloading durability for increased life and reliability Low-profile gear housing and a compact body make working in tight areas possible Rugged glass reinforced polyamide resin body and precision die-cast aluminum gear housing for performance and durability Spindle lock allows quick and easy accessory changes Smaller perimeter grip and forward-canted side handle add user comfort Trigger lock-on allows continuous operation