1. The s rewdriver handle an meet bat h head
2. The so ket using high-qu ty hrome vanadium steel bv30 old-press forming, torque % higher than that of arbon steel, use inferior smooth surfa e pro essing, good rust prevention effe t.
3.Bat h head adopts r-v materials, stronger hardness, toughness is higher.
Material: High- arbon steel
olor:si er