Depth Gauge Standard

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Ron Larsen
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Joined: Sat Mar 10, 2012 4:36 am

Depth Gauge Standard

Post by Ron Larsen »

I'm cleaning out some unused stuff from my workshop. I have a bag (a couple dozen) of precision bushings: 1 inch long, .439 diameter with a .250 hole through them. If you put two of them together and put your depth gauge on top the indicator should read .161.

I put this in For Sale, but they're free, all I ask is you pay the postage. Those of you that teach classes could hand them out to students.

If you want them, shoot me an email.

This works for any two cylinders of equal size. The formula is:

DP = depth of 60 degree point
r = radius of cylinder
0.26795 = tan 15 degrees

so... DP = r - (0.26795 x r)


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Ron Larsen
Vernon, CT
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