Drillpro HSS-Co M35 Cobalt Step Drill Bit Triangle Shank 4-12/4-20/4-32mm Spiral Flute Step Drill

Description Drillpro HSS Co M35 Cobalt Step Drill Bit Triangle Shank 4 12 4 20 4 32mm Spiral Flute Step Drill1 High speed steel cobalt M35 Suitable for Aluminum insulation board PVC board chamfer steel aluminum sheet metal carbon steel 304 stainless steel etc 2 Industrial grade cobalt plating More than 4241and 6542 high speed steel materials live longer 3 Triangle shank make more stable clampingSpecification Brand DrillproMaterial M35 Coblat HSS Co Shank Triangle ShankFlute Spiral FluteSizeShank DiameterStep RangeStep Height4 12mm 5 Step 6mm4 6 8 10 12mm7 5mm4 12mm 9 Step 6mm4 5 6 7 8 9 10 11 12mm4 5mm4 20mm 9 Step 8mm4 6 8 10 12 14 16 18 20mm4 5mm4 32mm 15 Step 10mm4 6 8 10 12 14 16 18 20 22 24 26 28 30 32mm4mm Features 1 CNC CNC CBN grinding wheel 2 118° X Bit Design you can drill from any angle no slipping 3 New notch design great chip removal small resistance geat heat dissipation 4 Higher accuracy sharper achieve drilling burr 5 Plated cobalt coating a substantial increase in the wear resistance and oxidation resistance 6 Triangle shank make more stable clamping 7 Ideal for cutting through metal wood and plastic quickly and easily Package Included 1 x Step Drill BitMore Details