Always the right size socket. Handyman member tested and recommended. Gator grippin' power! Fits 1/4 in - 3/4 in standard and 7 - 19 mm metric. Instantly grips any shape: 54 steel rods automatically grip hex nuts, wing nuts, square nuts, especially broken and rusted nuts. Fits both standard and metric. 3 Piece set includes: Gator Grip universal socket; drill adapter, turns any drill into a power socket set!; 3/8 in drive ratcheting socket wrench. One socket that does the work of a whole set! 3/8 in Standard drive. 1 in Outside diameter. Torque exceeds 100 ft pounds of power. Maximum depth: 3/8 in. GatorGrip can replace an entire range or wrenches. Superior grip with instant response: no adjustments needed. Use in your home, car, RV, boat, motorcycle, trailer, and more. Packaged in U.S.A. Socket made in U.S.A.