Size - 1/2-inch square drive socket, T30 Torx bit, 3.9-inch (100mm) total length.        
Durable - Heat treated Chrome Vanadium steel bits, high hardness, reduce wear-outs. High strength steel sockets, increase turning power.        
Torque Strength - Built to withstand high torque applications without twisting or deformation, ensuring reliable performance under load.        
Precision Bits - Automatically process bit tips to ensure accurate size, chamfered ends insert smoothly into fastener head, reducing wear.        
Great Tools - Use with ratchet to improve speed in tightening hex drive fasteners.