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Product Name | HSS Cobalt Straight Flute Step Drill Bits for Sheet Metal |
Material | HSS M35 |
Head Type | Triangle Shank |
Type | Metal Drilling |
Step | 4-32mm :(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm) 15 Steps 4-20mm:( 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)9 Steps 4-12mm: (4mm, 6mm, 8mm, 10mm, 12mm) 5 Steps |
Application | Suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood |
Features | The main advantages of the spiral groove step drill compared to the ordinary straight groove step drill are its strong chip removal ability, better guidance, and smoother cutting. |




















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