and we often have to go inside them so we needed
a toolholder that was smaller for the same cutter.
I looked at shrinkfit systems but we needed a high
end system for repeatability. When we looked at
the investment for shrinkfit versus the PG system,
the cost was about the same, except I preferred the
simplicity of the PG toolholding system.”
Part of the simplicity that Baril refers to is
the ability to change tools quickly and easily. It
was a key selling point for SMP because of the
company’s decision to purchase and inventory
additional tooling for flexibility.
“We decided it would be better to have more
tooling and have the ability to preset everything
when the machine was running. We wanted to
go a step further and have standard tools preset
all the time. We use standard drills, and regular
and long end mills. Even if we use them three or
four times a year, we try to ensure those tools are
preset all the time. So we intend to purchase more
toolholders to help us improve efficiencies.”
What SMP Tech does not plan to purchase is a
tool balancing machine.
“We had plans to purchase a tool balancer but
with the PG system, we’ve never had to balance
the tool, even on the high speed DMG MORI's we
run at 18,000 rpm all the time. We don’t need it
because of the PG system. It’s a big investment for
this system where you clamp the tool in the collet
but the payback is high.”
Not just quality
While Baril is impressed with the quality of
performance of the PG system, he says he is
equally impressed by Rego-Fix’s customer service.
He cites a story to illustrate how the company
responded to a challenge he encountered a few
“In Europe they use end mills with longer
metric shanks and when Rego-Fix produced it
for North America in inches, they didn’t think it
would be different. But it turns out if you take a
half inch end mill shank, it can be too short for
the collet on the PG system. You need to have
a tool engagement minimum length to achieve
the maximum accuracy and gripping force. The
Toolholding | CUTTING TOOLS | 49
continued on page 52 è è è è
Rego-Fix rep called me and said Rego-Fix wanted to see this issue.
He said to me at the time that they didn’t think a half inch round
tool would be a problem. They sent everything back to Switzerland
and did testing and the result of that testing was a new collet Rego-Fix developed called a short shank. So now the company offers a
standard collet and a short and long shank collet version. And all of
that because we told them about the problem we were having. They
came back to us with a solution.”
Mitutoyo Canada Inc.
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