Feeler Gages for mouthpiece facing measurements

[shmuelyosef]

I have made a short run of feeler gages in the hard to find sizes greater than 0.025" for measuring mouthpiece facings with the Babbitt glass gage or equivalent. They are quite accurate and will allow much more accurate facing curve determination (now's your chance to try and copy that Lamberson or Florida Link or at least understand why it plays so different from your modern $50 HR Link)

Details at:
http://sjrosner.home.mindspring.com/Feeler_Gages.htm

$30 plus $3 S&H gets you a set of 7 gages in high carbon spring steel.

[Paul Coats]

I have just ordered a set...

Thanks, Jeff!

[MojoBari]

These gages are a great upgrade to what I had been using. I'll may buy a backup set too.

[Paul Coats]

I just got my set of Rosner feeler gauges. They are excellent.

They came well oiled, packed in a sealed plastic bag, and a strip of
anticorrisive paper such as comes wrapped around new firearms.

I wiped off the oil and measured with my dial calipers. All gauges
were as marked.

A few of the gauges differed slightly from the set I use with my
Winslow kit.

For example, the Winslow kit contains a .031" feeler, whereas Rosner's
feelers (like the old Eric Brand kit's .034") has a .035". Measuring
several mouthpieces I found that the .031" gave a reading of about .75
mm greater than the .035" feeler. On a Link tenor this gave a reading
of 10 mm for the .035" vs 10 3/4 mm (appx) with the .031" feeler. This difference held for several mouthpieces I checked.

The other feelers that differed, .048" (Winslow) vs .050" (Rosner and
E. Brand), .077" (Winslow) vs .078" (Rosner), and .093" (Winslow) vs
.094" (Rosner), gave exactly the same facing length readings when measuring a mouthpiece.

While the .048" and .050" gave those actual measurement with my dial
indicator, the .077" and .078", and .093" and .094" actually measured
the same. These are really probably the same thicknesses, and the
difference results from rounding off errors, not from actual
difference in thickness.

2 mm = .0787" and 3/32" = .09375"

I am sure these are the correct thicknesses. Regardless, there is no
real difference, and these gauges may be used interchangably.

The only thing we need to adjust for when looking at the Winslow kit
measurment vs others is the .031" (Winslow) vs .035" (Rosner) or .034"
(E. Brand), is to realize the .031" will give a reading 3/4 mm greater
than the .035" or.034". I don't have a .034" Brand feeler, but am
sure it would measure facing length identically to the .035".

Thanks, Jeff!!!

Paul

[shmuelyosef]

I'm now charging $5 for shipping and handling, because I ran out of recycled shipping materials and had to buy some. If you buy multiple sets, I will only charge $5 for shipping any number of sets.