This Shockwave Square Recess #1 X 3-1/2 in. L Impact Power Bit Steel 1 Piece driver bit is engineered to be durable and long-lasting. It has a heat treated alloy and fits most power drills.·Easy to use and user-friendly

 

·Laser etched size for easy identification

·Design for use with impact drivers and drill drivers

·Precise fit custom machined tip prevents stripping and reduces wobble

·Laser hardening at the tip creates an outer protective shield

 

Specs:

 

•  Size: #1

•  Length: 3-1/2 in.

•  Shank Type: Quick-Change Hex Shank

•  Shank Diameter: 1/4 in.