Drillpro HRC89 M35 Cobalt Step Drill Bit 4-22mm/5-21mm TiAlN Coated Step Drill 1/4 Inch Hex Shank

Drillpro HRC89 M35 Cobalt Step Drill Bit 4-22mm/5-21mm TiAlN Coated Step Drill 1/4 Inch Hex Shank
Drillpro
sku: 1330456
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$17.49
Shipping from: China
   Description
Description Drillpro HRC89 M35 Cobalt Step Drill Bit 4 22mm 5 21mm TiAlN Coated Step Drill 1 4 Inch Hex ShankHigh speed steel cobalt M35 More than 4241and 6542 high speed steel materials Industrial grade TiAlN plating1 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 Brand DrillproMaterial HSS Co M35 CobaltSurface treatment TiAlN CoatingShank 1 4 Inch Hex ShankHardness HRC89specificationStepStep HeightSize4 22105mm4 6 8 10 12 14 16 18 20 22mm5 2195mm5 7 9 11 13 15 17 19 21mmFeatures 1 Spiral groove design Great chip removal 2 118X type bit design No slipping drill from any angle 3 1 4 Inch hex shank design 4 CNC CBN grinding wheel Higher accuracy 5 A substantial increase in the wear resistance and oxidation resistance 6 4 22 10 steps 5 21 9 Steps for choosing Package Included 1 x TiAlN M35 Hss Co Step DrillMore Details
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