... -61degree hardness 1,1/4" double end screwdriver bits 2,Application: screwdriver bits, power bits, pneumatic power bits3,S2 material4,Wide range of Tips selection:Phillips,Slotted,Torx,Pozidriv,Quadrex ... ,Square recess,Torq-Set,MorTorq,Tri-Wing,Triple Square are available5,Wide range of Coating selection:Sand blasting, titanium,Chrome electro-plating ...