User Guide

6
What is an Annular Cutter?
An annular cutter is a specialized bit for drilling
through steel. Like a hole saw for wood, an
annular cutter only cuts the outside edge of a hole.
It produces accurate burr-free holes to close
tolerances without pre-drilling or step drilling. It can
drill a much larger hole and requires less force and
time than a standard twist drill bit. As it turns, the
cutter produces chips from the outside cutting
edges and after cutting the hole a ‘slug’ (round
chunk of steel from the center of the cutter) falls out.
What Annular Cutter Do I Use?
Use the chart on page 19 to determine which
annular cutter to use. The cutter you select depends
on the diameter of the hole, the depth of cut and the
type of material. A wide range of annular cutters are
designed to cut through the following materials:
• Carbon Steel
• Stainless Steel
• Aluminum
Why Use an Annular Cutter?
Annular Cutters offer superior holemaking capabilities.
They cut faster, last longer, produce a better hole
finish, a true round hole with very tight tolerances, can
be re-sharpened and drills holes with less power
and torque.
www.hougen.com
• Hard Alloys ex: Titanium
• Hastelloy