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.30mm 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. IS130Model No: IS130:Brand: Premier:Depth: Standard:Drive: 1Sq:Material: Chrome Molybdenum:Nett Weight: 0.62kg:Size: 30mm:PTDSEAIS130