Features 1. Spiral groove design(Great chip removal). 2. 118 ° X type bit design(No slipping, drill from any angle). 3. Double R 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. 3-13mm(11 Steps), 6-25mm(10 Steps), 6-35mm(13 Steps) for choosing.
Specifications Name:Step Drill Model:998692 Material: HSS-Co M35 Cobalt Surface treatment: TiAlN Coating Shank: 1/4 Inch Hex Shank Hardness: HRC89
Double R 1/4 Inch Hex Shank, Protection Cone Design, Super Torque High-speed steel cobalt/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 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. Note 1. Please allow 1-3mm differs due to manual measurement. 2. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Package Included 1 x Step Drill
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