【Size】Single 1/4 inch drive star socket, T20 torx bit, 1.46 inch (37mm) Overall length. 【Material】Made by quenched and heat treated S2 alloy steel bits, hardness up to 62 HRC, great wear resistance. High strength CR-V steel sockets, increase turning power. 【Surface Treatment】Mirror-polished and chrome-plated sockets and phosphate bits finish offer excellent anti-corrosion and anti-rust performance. 【Precision Bits】Automatically processe bit tips to ensure accurate size, Star-shaped Torx bit has 6-lobes machined to precise tolerances for an exact, high-torque fit that resists camming out, reducing wear. 【Notes】 Use with matched ratchet to improve speed in tightening torx drive fasteners. And the socket has no insulation properties and is not suitable for electrical environments. Premium S2 steel forged bits are exceptionally strong and durable. These S12 steel bits withstand high torque and do not twist, protecting both the bit and the fastener. Chamfered end to ensure a smooth fit onto fasteners. Premium Chrome Vanadium steel sockets plated with protective plating are durable and corrosion resistant.

The carefully pressed process ensures that the bit is straight and fits tightly, the bit will not loosen over time or under pressure.

Four detent grooves in the socket drive end provide a secure connection with spring-loaded detent balls of a drive tool, ensures the sockets won't slide or drop.