2" x 1/4" 5/16" 3/8" 7/16" 1/2" Impact Bit Clip (5 Pc Multipack) Industrial Recyclable. The reduced, rounded shank improves balance and reduces vibration and its milled finish, non-coated hex shanks provide optimal fit in modern impact guns. All of our impact bits are magnetized to hold fasteners in place while driving and are colour coded for easy identification.Find the BIT CLIP IMPACT 5PC at Ace.