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 Drill 1. 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 clamping Specification: Brand: Drillpro Material: M35 Coblat(HSS-Co) Shank: Triangle Shank Flute: Spiral Flute Size Shank Diameter Step Range Step Height 4-12mm(5 Step) 6mm 4,6,8,10,12mm 7.5mm 4-12mm(9 Step) 6mm 4,5,6,7,8,9,10,11,12mm 4.5mm 4-20mm(9 Step) 8mm 4,6,8,10,12,14,16,18,20mm 4.5mm 4-32mm(15 Step) 10mm 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm 4mm Features: 1. CNC CNC, CBN grinding wheel. 2. 118 X Bit Design, you can drill from any angle, no slipping. 3. New groove 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 Bit More Details: