Impact

: These allow you to use square-drive sockets on a hex-drive impact driver. Popular options include the Husky 3-Piece Set Go to product viewer dialog for this item. or RYOBI Impact Rated Adapters

Impact wrenches typically feature a (often 1/2", 3/8", or 1/4"). Impact

: Slide a hex-shank bit into the opening. These bits often have a notch that the chuck grips to lock them in place. : These allow you to use square-drive sockets

: Align the square hole of the socket with the anvil of the wrench. Impact

: If you need to use standard smooth-shank drill bits, you can use a keyless drill chuck adapter . 2. Attaching Sockets to an Impact Wrench