For those people drilling Teflon for slides you
 are going to need a Brad point drill.
 A regular drill makes a mess of it.
 http://www.wlfuller.com/html/short_length_brad.html

 Paul Lamar


Paul

Have you tried a water cutter?

Rick
www.precisioncut3D.com


Yes I have used them before for cutting intake manifold
flanges. They work great.

However cutting this Teflon is something everybody
assembling our
slide throttle kits will need to do at home. The straight
parts can be cut with scissors but the small holes need to
be drilled.
The large 1 7/8th holes can be cut with an exacto knife as
the material
is soft and only .032 thick.

Paul Lamar



With 0.032 thick Teflon, a Roper Punch should work nicely.

One thing I hate about machining Teflon, you can not sneak up on it.

For aluminum, I just do rough cuts until 0.050" away from it. Then
a series of 0.010" cuts. Finally shave 0.001" off on final passes.

With Teflon if I'm not removing 0.025" per pass, it just slide along
the cutter!  My only solution has been to set the boring bar to size
with scrap aluminum, cut the Teflon, measure and readjust the boring
bar and go town.

Any tips you can pass along?

Tom

Nothing other than that. We won't be doing a lot of cutting
thick Teflon from now on. The new slide throttle uses
the thin stuff which saves about $100.

Paul Lamar