Drillpro 3 Flute Step Drill Bit TiAlN Coated HRC89 HSS-Co M35 Cobalt Step Drill 1/4 Inch Hex Shank

Description: Drillpro 3 Flute Step Drill Bit TiAlN Coated HRC89 HSS-Co M35 Cobalt Step Drill 1/4 Inch Hex Shank Specification: Brand Drillpro Material M35 Cobalt(HSS-Co) Coated TiAlN Coated Hardness HRC89 Flute 3 Flutes Shank 1/4 Inch Hex Shank Groove 3 Spiral Groove Size: Model Steps Size 4-12mm 9 4,5,6,7,8,9,10,11,12mm 4-22mm 10 4,6,8,10,12,14,16,18,20,22mm 5-23mm 10 5,7,9,11,13,15,17,19,21,23mm 4-32mm 15 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm Uses: Suitable for Aluminum, insulation board, PVC board chamfer, steel, aluminum, sheet metal, carbon steel, 304 stainless steel, etc. 3 Flute, 3 Spiral Groove Design: Great chip removal, great heat dissipation, higher drilling speed, small vibration, higher stability, make drilling high accuracy. 1/4 Inch Hex Shank Design 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. Package Included: 1 x 3 Flute Step Drill Bit More Details: