Minimum Size : 3/8 In. Maximum Size : 7/8 In. Number of Holes : 12 Steps Shank Diameter : 1/4 In. Hex Material : Metal under 1/8 In., Plastic, Steel Individual/Set : Individual
Minimum Size : 7/8 In. Maximum Size : 1-3/8 In. Number of Holes : 5 Steps Shank Diameter : 3/8 In. 3-Flat Material : High Speed Steel, Black Oxide Individual/Set : Individual