Each socket has a knurled ring for extra grip. Supplied with a 72 tooth reversible soft grip ratchet and accessories. 6 x Imperial deep socket: 7/16, 1/2, 9/16, 5/8, 11/16, 3/4″». 14 x Imperial socket: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1, 1.1/16, 1.1/8, 1.3/16″».