Product Review

Designed to apply maximum torque, the 6-point opening of the TEKTON 3/8 in. Drive x 21 mm Deep Socket snugly fits the hex shape of fastener heads, so there's no opportunity for slipping. To prevent round off, it grips the flat sides of fasteners rather than the corners. With an extra-deep broach, it reaches over long, threaded shafts to access nuts. Detent notches inside the drive end securely lock socket onto ratchets and extensions, so it won't fall off or stick on fasteners. Made from premium chrome vanadium steel, it's protected from rust and corrosion by a durable mirror chrome plated finish.