Countersink Drill Bit Rustproof Set 3 Flutes 6 Pcs

Feature：

* and *Made of cobalt steel material, high hardness, rustproof, solid and *The chamfering with a groove, easier to discharge debris and the High Carbon Steel Drill not easy to blunt *High hardness, smooth chip processing, can fulfill the chamfering, deburring, and cone processing *6 Pcs drill bits with various sizes : 6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, 20.5mm *The high-quality countersink drill bits can remove burrs well without leaving scratches *Suitable for processing metal and some non- materials, such as carbon steel,thin iron plate, insulation board, PVC board, wood plate and so on *Material: high speed steel 4241 *Color: silver *Size: 6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, 20.5mm *Flutes: Three edge chamfering *Quality：6pcs

Package list：

6 * HSS Countersink Drill Bits