Step Drill Bit, HSS M35 5% Cobalt Metric Step Drill Bit Set (4MM-20MM), 9 Sizes Step Bit for Impact Driver, Multiple Hole Stepped Up Bits for Stainless Steel Hard Metal and Cast Iron

★★★★★ 5.0 141 reviews

US$4.80
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US$4.80
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Management number 247377841 Release Date 2026/08/16 List Price US$4.80 Model Number 247377841
Category
  • 【HSS M35 5% Cobalt Coating】High speed steel along with cobalt coating ensures outstanding durability and sharpness, can reduces the friction.
  • 【Requirement】 M35 Cobalt High Speed Steel is more suitable for hardening materials. Ideal for cutting stainless steel, steel and cast iron as well as wood, aluminum alloys and other softer metals. Not suitable for glass or ceramic materials. Not applicable to high carbon steel and heat treated steel. Pay attention to speed, pressure and heat control when drilling.
  • 【Structural Design】With the step drill bits we offered, machining holes of different diameters saves a lot of trouble.Drill metric sizes: 4mm-20mm, the difference between each layer is 4mm.Split point tip at 118 degrees for added abrasion resistance. The dual edge design provides a smoother cut and allows material particles to easily escape for a cleaner drilling operation.
  • 【Efficiency】The double-edged design keeps metal filler from flying around and clears chips faster, so you can drill more smoothly without heating.
  • 【SERVICE】If you have any problem with our metric drill bit set or are not satisfied with the product, please feel free to contact us.
ASIN B09YPWQM3H
Model A00002
Set Name 9-Piece Step Drill Bit Set
Brand Name NewShark
Shank Type Straight
Unit Count 1 Count
Part Number A00002
Point Style Split Point
Finish Types Cobalt
Manufacturer NewShark
Material Type M35 5% Cobalt Coating
Number of Packs 1
Tool Flute Type Spiral
Number of Flutes 1
Number of Pieces 9
Cutting Angle String 118 degrees
Minimum Bore Diameter 4 millimeters
Surface Recommendation Stainless,Aluminum,Wood,Cast Iron,Metal,Steel

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