Unibor E32 Mode D'emploi page 3

THE BROACH CUTTING CONCEPT
Power
required
If you are unfamiliar with the use of
annular (or broaching) cutters, take a few minutes
to read this guide - you will benefit from the
better performance and longer life of the tool if
you understand the concept.
Annular cutters only cut material at the
periphery of the hole, rather than converting the
entire hole to shavings. As a result the time and
energy required to make the hole is lower than
for a traditional twist drill.
The broaching capacity of a machine
is therefore greater than the twist drill capacity.
The slug ejected after the cut also has a higher
scrap value than shavings.
Material
removed
3