25PCS Straight Shank Twist Drill Bit
Material:high speed steel.
Standard:DIN338.
Production technology:fully ground.
Surface treatment(color):titanium coated
Specification:from DIA.1.0mm to DIA.13mm by 0.5mm.
Packing details:metal box.
We can manufacture drill bit from DIA.0.3mm to DIA.13mm,according to customer's requirement.
For the surface treatment,we also can do as customer's needs.