Add the Elora 67533 1\" Square Drive Bi-Hexagon Socket 2.3/4\" to your kit With Professional Quality, The Elora 67533 is manufactured from chrome vanadium steel hardened, tempered and chrome plated for corrosion protection. The Chamfered end allows positive nut location and entry. This Elora 67533 features a hole for driving accessory with a locking pin.  Features: Chrome vanadium steel hardened, tempered and chrome plated for corrosion protection Chamfered end allows positive nut location and entry Hole for driving accessory with locking pin Specification: Size: 2.3/4\"