3 Pcs Cobalt Step Drill Bit Set repairs and operations

repairs and operations

3 Drill Bits

maintenance or portable drilling jobs in metal

Metal Drill Bits for Steel and Aluminum (6 PCS Same Sizes in One Pack)

3 Pcs Cobalt Step Drill Bit Set repairs and operations3PCS Cobalt Step Drill Bit Set, Three Spiral Flutes Hex Shank Unibit Drill Bits for Metal, Stainless Steel, Aluminum, Wood, Plastic. TiAlN COATING: TiAlN coating has excellent characteristics such as high hardness, high oxidation temperature, strong adhesion, small friction coefficient and low thermal conductivity. TiAlN coated cutting tools can be used for hard materials and high speed cutting. THREE FLUTES STEP DRILL BIT: Ordinary step drill bits