... , pneumatic power bitsMaterial: Industrial grade S2 steel.Wide range of Tips selection: Phillips,Slotted,Torx,Pozidriv,Quadrex,Frearson,Sockethead,Square ... ,Torq-Set,MorTorq,Tri-Wing,Triple Square are availableWide range of Coating selection: Sand blasting, titanium,Chrome electro-plating, manganese hypophosphite ... typeLength(mm)17-0824PH1X17017-0827PH2X270 H5/16" sand blasting coating Hex driver bits