·Material:Cr-v;

·3Pcs - 1/4" drive adapter, 3/8" drive adapter, and 1/2" drive adapter and each with a 1/4 inch hex shank ,driver socket wrench adapter set;

·1/4" 3/8" 1/2" Turns any power drill into a power nut driver Sturdy spring-loaded ball bearing holds sockets securely in place;

·Sockets Snap-On Tightly and Won't Slip Off.