Drillpro HRC89 M35 Cobalt 4-12/4-20/4-32mm Step Drill Bit TiAlN Coated Round Shank Step Drill
Round Shank, Straight Groove.
High-speed steel cobalt/M35
More than 4241and 6542 high-speed steel materials.
Industrial-grade TiAlN plating
1. Form Al2O3 protection cover, fit for high speed drilling.
2. Can work without coolant.
3. Hardness up to HRC89.
4. Life service 2-3 times longer the common HSS-Co M35 step drill.
Suitable for Aluminum, insulation board, PVC board chamfer,steel, aluminum, sheet metal, carbon steel, 304 stainless steel, etc
Material: HSS-Co M35 Cobalt
Coating: AlTiN Coating
Shank: Round Shank
|Model||Shank Diameter||Step Height||Step Number|
1. Straight groove design(Stably drilling, esay to control)
2. 118 ° X type bit design(No slipping, drill from any angle)
3. Round shank design(Chamfer design,easy to install)
4. CNC, CBN grinding wheel(Higher accuracy)
5. Hardness up to HRC89, TiAlN coating, a substantial increase in the wear resistance and oxidation resistance
(TiAlN coating, made of high-speed steel cobalt/M35 )
6. 4-12mm(5 Steps), 4-20mm(9 Steps), 4-32mm(15 Steps) for choosing.
1 x TiAlN M35 Hss Co Step Drill