Rubber boot for the DEWALT Atomic Compact Impact Wrenches helps protect both the tool and work surfaces from damage. For use with the DCF921, DCF922 and DCF923. Includes PB921-22-23B Protective Boot Features Rubber material helps protect tool and work surfaces Flexible design allows for easy install and removal Custom DEWALT PB921-22-23B-Cmpt Imp Wrench Protective Boot - Black