Draper 19mm (3/4″) Square Drive Socket Draper 19mm (3/4″) Square Drive Socket Expert Quality, 12 point socket manufactured from chrome vanadium steel that’s hardened and tempered with a polished finish. Each socket has a knurled ring for extra grip. Expert Quality Chrome vanadium steel hardened, tempered, chrome plated and polished Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications
