M35 HSS-Co Cobalt TiAlN Coated Countersink Drill Bit 90 Degree Deburring Chamfer Tool Oblique Hole Cutter 2-5 5-10 10-15 15-20mm

Features:

1. The same containing cobalt high speed steel material, the surface after a TiALN coating, 3 times can prolong service life.

2. The TiALN coating super high temperature resistance, can be in the case of without coolant, long time use, suitable for dry type high speed cutting.

Industrial Grade TiALN Coating,TiAlN coating surface will form Al2O3 which form a hard protective layer when drilling.(Perfect for high speed drilling)

3. HSS - CO high speed steel after heat treatment + TiALN coating surface hardness up to 89 degrees.

4. TiALN coating can do not need to add cooling fluid, more suitable for aerial work where the work is not convenient to add cooling water systems.

5. 90 degree chamfer, CNC CNC, CBN grinding process.

6. Higher accuracy sharper achieve drilling burr.

7. Internal chip removal: To eliminate the phenomenon of flying metal shavings.

Specification:

2-5 is suitable for pour 2-5mm hole, the maximum can be pour 10mm

5-10 is suitable for pour 5-10mm holes, the maximum can be pour 14mm

10-15 is suitable for pouring 10-15mm holes, and the largest can be poured to 21mm

15-20 is suitable for pouring 15-20mm holes, and the largest can be poured to 28mm