Chrome Vanadium drop-forged deep WallDrive® impact socket. Hardened and tempered for added strength with phosphate finish for greater corrosion resistance. Ideal for use with air impact wrenches.22mm 1/2Sq Drive Deep Impact Socket• Chrome Vanadium drop-forged deep WallDrive® impact socket. • Phosphate finish for greater corrosion resistance.• Ideal for use with air impact wrenches.• Lifetime guarantee*.• Model No. IS1222DModel No: IS1222D:Brand: Premier:Depth: Deep:Drive: 1/2Sq:Material: Chrome Vanadium:Nett Weight: 0.29kg:Size: 22mm:PTDSEAIS1222D