Drillforce Countersink Drill Bits HSS M2 M35 Cobalt Deburring 90 Degree Chamfering Hole Type Cutter(2-5 5-10 10-15 15-20mm )

【M35 Cobalt】 Features：Higher accuracy sharper achieve drilling burr.Internal chip removal: To eliminate the phenomenon of flying metal shavings.Plated cobalt coating, a substantial increase in the wear resistance and oxidation resistance.M35 (HSSCO) is a high-quality cobalt-containing high-speed steel material, suitable for stainless steel plates, iron plates, aluminum plates, etc.).The deeper the chamfering depth will affect its service life. Generally OK at a depth of 3-5mm. Specification:2-5 is suitable for pour 2-5mm hole, the maximum can be pour 10mm5-10 is suitable for pour 5-10mm holes, the maximum can be pour 14mm10-15 is suitable for pouring 10-15mm holes, and the largest can be poured to 21mm15-20 is suitable for pouring 15-20mm holes, and the largest can be poured to 28mm 【M35 TiALN:】 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 10mm5-10 is suitable for pour 5-10mm holes, the maximum can be pour 14mm10-15 is suitable for pouring 10-15mm holes, and the largest can be poured to 21mm15-20 is suitable for pouring 15-20mm holes, and the largest can be poured to 28mm