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Shop / knkut step drill bits

Professional 4 Spiral Flute Cobalt Step Drill Bit Set for Metal, Stainless Steel, Aluminum, Plastic - 1/4-3/4 Hex Shank

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$ 20.50   $14.76   save 28%
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About this item

  • TiAlN COATING - With 89HRC surface hardness, harder materials can be cut and higher cutting speeds can be achieved.
  • WARRANTY - If you are not fully satisfied for any reason, please contact us for 100% refund or replacement. If the hex shank snap off, please contact us for replacement.
  • FOUR SPIRAL FLUTE - Four cutting blades design guarantees a faster and smoother cutting. Feels like a hot knife through butter!
  • 9 STEP SIZES - Includes 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4".
  • - M35 cobalt HSS step drill is ideal for drilling 1/8" (3mm) thick stainless steel, metal sheets, wood, plastic, aluminum sheet, copper, and other metals.
  • - Perfect for various metal sheets, wood, and plastic, this M35 cobalt HSS step drill is suitable for drilling 1/8" (3mm) thick stainless steel.
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