General description Neilsen's 16pc Long Torx Bit Star Socket Set includes a variety of T40 sockets designed for versatility and durability, making it an essential addition to any toolkit. Technical specifications Socket sizes: 8 x T40 (50mm), 2 x T40 (100mm), 6 x T40 (30mm) Drive size: 3/8" Material: CRV (Chrome Vanadium) & CRMO (Chrome Molybdenum)