*extension bar with 1/2" drive & length 10" *environmental friendly phosphating *drop forged & heat treatment *long lifetime Product detailMaterial : Chrome Vanadium Steel Surface finish:phosphating ,chrome plated , mirror ,nickel plated ,matt nickel Process : heat treatment & drop forgedSize : Length 5'' ,1/2'' drivePackage detailcolor box ,40pcs in each box,4 boxes in each cartoncarton size : ...