Professional Quality, socket manufactured from chrome vanadium steel hardened, tempered and chrome plated for corrosion protection. Chamfered end allows positive nut location and entry. Hole for driving accessory spring - loaded ball bearing. 3/8" square drive Chrome vanadium steel hardened, tempered and chrome plated for corrosion protection Manufactured to DIN 3124/ISO 2725 and DIN 3120/ISO 1174 Specifications |