Specifications
HSS CO 8% NC Spotting drill bit (Spot Drills,Drill Bits)
*Material: HSS Co8 M42 drill
*Angle:90 degree or 120. 150 degree
countersink bit, glass drill with chamfer angle, used for fragile and hard materials.
countersink bit
we are factory specializing in the manufacture and export of for more than ten years. We have profuse designs with series quality grade, and expressly, our price is very competitive because we are manufactory, we are the source