Irwin 1/4 - 3/4" HSS Step Drill Bit

I/N: 0028734
Price correct as at Tue 18 Dec 2018 7:39:09am
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Product Description

A step drill bit is a drill bit that has the tip ground down to a different diameter. The transition between this ground diameter and the original diameter is either straight, to form a counterbore, or angled, to form a countersink. The advantage to this style is that both diameters have the same flute characteristics, which keeps the bit from clogging when drilling in softer materials, such as aluminium.

  • Diameter: 1/4”–3/4” in 1/16” increments
  • Step thickness: 1/8”
  • Shank diameter: 3/8”
  • Good choice for cutting medium sized holes quickly and easily

Product Details

Model Name
Step Drill
Model Number
Product Dimensions (mm)
W:25 H:25 L:45
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