23-Pc. Impact Socket Set, 1/2-In. DriveDewalt, 23 piece, 1 2" drive, impact socket set, set includes: (20) 1 2" drive 6 point impact sockets: 7 16", 1 2", 9 16", 5 8", 11 16", 3 4", 13 16", 7 8", 15 16", 1", 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm, (1) 1 2" drive 5" impact extension, (1) 1 2" drive drill adapter, (1) 1 2" drive quick release ratchet, the sockets include directtorque technology to help prevent rounding of fasteners & to provide better grip.