Irwin 13/16" - 1-3/8" HSS Step Drill Bit

I/N: 0028725
$265
Price correct as at Wed 20 Jun 2018 2:14:09pm
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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 13/16”–1 3/8” diameter in 1/16” increments
  • Step thickness: 1/8”
  • Shank diameter: 1/2”
  • Perfect for reaming, deburring or enlarging medium-sized holes quickly

Product Details

Model Name
Hole Elarging Bit
Model Number
10221
Product Dimensions (mm)
W:24 H:48 L:96
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