Chrome Molybdenum drop-forged WallDrive® impact socket. Hardened and tempered for added strength with phosphate finish for greater corrosion resistance. Ideal for use with air impact wrenches.50mm 1Sq Drive Impact Socket• Chrome Molybdenum drop-forged WallDrive® impact socket. • Phosphate finish for greater corrosion resistance.• Ideal for use with air impact wrenches.• Lifetime guarantee*.• Model No. IS150Model No: IS150:Brand: Premier:Depth: Standard:Drive: 1Sq:Material: Chrome Molybdenum:Nett Weight: 1.18kg:Size: 50mm:PTDSEAIS150