Colorful groove screwdriver bits 1.S2 steel 2.Different size for your chose 3.58-61 degree hardness 4.bits with two grooves

1.H1/4" 25mmL bits \ colorful groove screwdriver bits (screwdriver bits, power bits, pneumatic power bits)

2.Application: screwdriver bits, power bits, pneumatic power bits

S2 material

3.Wide range of Tips selection:

1)Phillips,Slotted,Torx,Pozidriv,Quadrex,Frearson,Sockethead,Square recess,Torq-Set,MorTorq,Tri-Wing,Triple Square are available

2)Wide range of Tips selection

3)Wide range of Coating selection:Sand blasting, titanium,Chrome electro-plating, manganese      hypophosphite both them available for us

Pneumatic screwdriver bits