The 7/16 in. universal QUIK-LOK extension has an innovative design that fits all 7/16 in. shanks - with or without a power-groove. The uniques design requires no tools to change out bits, making it fast and efficient. These new extensions are impact rated for maximum durability.
Universal Quik-Lok - accepts all 7/16 in shanks|Impact-rated, making this the most versatile extension on the market|Quick change of bits, no tools required|Hardened shank for maximum durability
Milwaukee QUIK-LOK Hex Drill Extension, Universal, 7/16 in Shank, 18 in Length, Steel, Black