Milwaukee® QUIK-LOK™ Hex Drill Extension, Universal, 7/16 in Shank, 5-1/2 in Length, Steel, Black, For Use With: 1/4 in Shank
Universal Quik-Lok™ - accepts all 7/16 in shanks Impact-rated, making this the most versatile extension on the market Quick change of bits Hardened shank for maximum durability