Drillpro HRC89 AlTiN Coating Step Drill Bit 4-20mm HSS M35 Cobalt Step Cone Drill Bit Hole Cutter

Drillpro HRC89 AlTiN Coating Step Drill Bit 4-20mm HSS M35 Cobalt Step Cone Drill Bit Hole Cutter
Drillpro
sku: 1228988
$11.50
Shipping from: China
   Description
Description Drillpro HRC89 AlTiN Coating Step Drill Bit 4 20mm HSS M35 Cobalt Step Cone Drill Bit Hole CutterSpecification Brand DrillproMaterial HSS Co M35Coating AlTiN CoatingHardness HRC89Step 9 stepsSize 4 6 8 10 12 14 16 18 20mm 4 20mm Shank Size 1 4 Hex ShankFeatures 1 Hardness up to HRC89 perfect to drill 304 stainless steel wood iron aluminum alloy insulation boards PVC sheet 2 Industrial Grade TiALN Coating TiAlN coating surface will form Al2O3 which form a hard protective layer when drilling Perfect for high speed drilling 3 Service life is 5 10 times longer than general step drill Can drilling without coolant with coolant service life will be longerand performance will be better 4 118 X Bit Design you can drill from any angle no slipping 5 Great chip removal small resistance geat heat dissipation 6 HIgh precision no burr when drilling 7 Easy to installPackage Included 1 x Drillpro HRC89 AlTiN Coating Step Drill Bit 4 20mmMore Details
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