Old, Unique or New

How about a GaxiGruv gage for measuring internal grooves.


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A 1955 article about it in The Machinist magazine.

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If you are up to it, bring them on. :lmao: I gotta go diggin, you are a formidable opponent. :)) Tom is no slouch either.

"Billy G" :thinking:
 
Here is a set of Lufkin Tubular Inside Micrometers, not very unusual. However the second photo is of a Lufkin 9A Height Gage Attachment for the inside mikes. You can measure between shaft using this. It has a 3/8" collet in the top of it, and I have also used it with a dial indicator as a depth gauge. It also has a beautiful case hardening on it.

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Another unusual accessory is this Brown and Sharpe height gauge attachment for a combination square.

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A few of my indicators. First up, a J.R. Reich Mfg. Co., it has a scale on either side, and there is no reversing lever.

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A Standard Gage Co. dial indicator, with a 0.0001 resolution, it has a dovetailed back. Above it is an Interapid 312B-1 for scale.

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A Fowler Verdict test indicator with 0.001 resolution and a 3.5" tip.

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Ames Hole Test, .625. Also, two tachometers (hand held). One Starrett (black) one B&S. Yup, that first one that Don put up is a doosey. Havin fun yet? :lmao:

"Billy G" :thinking:

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A few more of my indicator collection. A couple of Gladwin test indicators, these also have a scale on both sides and no reversing lever. They require a Gladwin holder to connect with anything else.

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A couple of Starrett 564's test indicators. These were discontinued not too long ago. Unique to these is the tip will rotate 360° independent of the body. They also have no reversing lever.

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An Ideal Tool Co. test indicator on top, also no reverse lever. Next is a Lufkin 199A, also no reverse lever. The bottom indicator appears to be homemade, and doesn't have a return spring.

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Having fun yet? I'm just getting warmed up.

A few more indicators. A couple of Koch's, these are both test indicators and plunger types. Completely enclosed also.

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A couple of old Starrett 64's. These use a linear spring that can be repositioned so you can indicate on three different surfaces on the tip.

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As hand tacs are alowed how about this one.

Brian.


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