Bosch 12V Max Brushless Impact Driver PS42N Compact High Torque Cordless Fastening Tool for Tight Spaces Bare Tool Storage bolt an American Lock #50 bolt an American Lock #50 or Master Lock #5 inside the recessed Site Vault housing and attach the optional heavy duty 6 inch caster kit Standard Tool Holders Tool Interface Type Husqvarna EZchange™ Wing Tool System Material Composition Heat Conductive Cast Aluminum Alloy and Steel Hardware Compatible Grinder Models Husqvarna PG 830 Performance Control System: Two speed settings (0 1 Standard bits are brittle and can shatter under the high torque and sudden force generated by the impact mechanism