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
Drillpro
sku: 1328303
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$16.49
Shipping from: China
   Description
Description Drillpro HRC89 M35 Cobalt 3 12 4 12 4 20mm Step Drill Bit TiAlN Coating 1 4 Inch Hex ShankUses 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 DrillproMaterial HSS Co M35 CobaltSurface treatment TiAlN CoatedShank 1 4 Inch Hex ShankHardness HRC89specificationStepStep HeightSize3 1295mm3 4 5 6 7 8 9 10 12mm4 1295mm4 5 6 7 8 9 10 11 12mm4 2095mm4 6 8 10 12 14 16 18 20mmFeatures 1 Spiral groove design Great chip removal 2 118X 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 DrillMore Details
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