... 4.used for pneumatic tools Item: H5/16" Hex driver bits,screwdriver bits, power bits, pneumatic power bitsApplication: ... pneumatic power bitsMaterial: Industrial grade S2 steel.Wide range of Tips selection: Phillips,Slotted,Torx,Pozidriv,Quadrex,Frearson,Sockethead ... -Set,MorTorq,Tri-Wing,Triple Square are availableWide range of Coating selection: Sand blasting, titanium,Chrome electro-plating, ...