3/8"dr. Cr-mo 60mmh Deep Impact Hex Allen Socket Bits Set: H4-h12mm

7pc 3/8"Dr. Cr-Mo 60mmH Deep Impact Hex Allen Socket Bits Set: H4 H5 H6 H7 H8 H10 H12. 7pc set with size range: H4-5-6-7-8-10-12mm. For use with impact wrenches. Includes internal hexagon sizes with groove and hole for retaining ball.