Drillpro HRC89 M35 Cobalt Step Drill Bit 3-12/4-12/4-20mm TiAlN Coated Step Drill 1/4 Inch Hex Shank
![Drillpro HRC89 M35 Cobalt Step Drill Bit 3-12/4-12/4-20mm TiAlN Coated Step Drill 1/4 Inch Hex Shank](http://imgaz.staticbg.com/images/oaupload/banggood/images/B8/C2/15f624ca-08f8-4dd7-9af1-2ac40c4fee75.jpg)
Eachine1
sku: 1328303
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$8.23
Shipping from: China
Description
Description: Drillpro HRC89 M35 Cobalt 3-12/4-12/4-20mm Step Drill Bit TiAlN Coating 1/4 Inch Hex Shank Uses: Suitable for Aluminum, insulation board, PVC board chamfer, steel, aluminum, sheet metal, carbon steel, 304 stainless steel, etc. HSS-Co/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 than common HSS-Co M35 step drill. Specification: Brand: Drillpro Material: HSS-Co M35 Cobalt Surface treatment: TiAlN Coated Shank: 1/4 Inch Hex Shank Hardness: HRC89 specification Step Step Height Size 3-12 9 5mm 3,4,5,6,7,8,9,10,12mm 4-12 9 5mm 4,5,6,7,8,9,10,11,12mm 4-20 9 5mm 4,6,8,10,12,14,16,18,20mm Features: 1. Spiral groove design(Great chip removal). 2. 118 X type bit design(No slipping, drill from any angle). 3. CNC, CBN grinding wheel(Higher accuracy, no burr). 4. A substantial increase in the wear resistance and oxidation resistance. 5. 4-12mm(9 Steps) 3-12mm(9 Steps) 4-20mm(9 Steps) for choosing. Package Included: 1 x TiAlN M35 Hss Co Step Drill More Details:
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