3-13/6-25/6-35mm HRC89 M35 Cobalt Step Drill Bit TiAlN Coated Step Drill 1/4 Inch Hexagon Shank

Description:
3-13/6-25/6-35mm HRC89 M35 Cobalt Step Drill Bit TiAlN Coated 1/4 Inch Hexagon Shank Step Drill

Double R 1/4 Inch Hexagon Shank, Protection Cone Design, Super Torque

High-speed steel cobalt/M35
More than 4241 and 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.

Uses:
Suitable for Aluminum, insulation board, PVC board chamfer,steel, aluminum, sheet metal, carbon steel, 304 stainless steel, etc.

Specification:

Material: HSS-Co M35 Cobalt
Surface treatment: TiAlN Coating
Shank: 1/4 Inch Hexagon Shank
Hardness: HRC89

specification	Step	Step Height	Size
3-13	11	5mm	3,4,5,6,7,8,9,10,11,12,13mm
6-25	10	5mm	6,8,10,12,14,16,18,20,22,25mm
6-35	13	5mm	6,8,10,12,16,18,20,22,25,28,30,32,35mm

Features:
1. Spiral groove design(Great chip removal).
2. 118 ° X type bit design(No slipping, drill from any angle).
3. Double R 1/4 Inch Hexagon shank design.
4. CNC, CBN grinding wheel(Higher accuracy).
5. A substantial increase in the wear resistance and oxidation resistance.
6. 3-13mm(11 Steps), 6-25mm(10 Steps), 6-35mm(13 Steps) for choosing.

Package Included:
1 x TiAlN M35 Hss Co Step Drill

More Details: