Bore mic/comparitor?

Bore mic/comparitor?

This topic has 13 replies, 9 voices, and was last updated 9 March 2023 at 23:50 by John Reese.

Viewing 14 posts - 1 through 14 (of 14 total)

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5 March 2023 at 17:03 #636266
Roger Clark
Participant
@rogerclark
Just bought this but no name or company on the tool or box, seems quite old. Anyone able to identify it and it's purpose?
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5 March 2023 at 17:03 #20939
Roger Clark
Participant
@rogerclark
5 March 2023 at 17:09 #636268
noel shelley
Participant
@noelshelley55608
Pistol grip sheet thickness gauge/comparitor. Noel
5 March 2023 at 17:54 #636276
Jeff Dayman
Participant
@jeffdayman43397
I agree with Noel it is for measuring sheet material thickness – but it may be specifically intended for measuring the wall thickness of thinwall pipe.
5 March 2023 at 19:00 #636287
jimmy b
Participant
@jimmyb
I'd say bore comparator, not sheet material.

Jim
5 March 2023 at 20:36 #636302
Roger Clark
Participant
@rogerclark
I'll take some more photos tomorrow, hopefully they might clarify the action.

Roger
5 March 2023 at 21:43 #636314
Emgee
Participant
@emgee
Bore or groove comparator.

Emgee
5 March 2023 at 22:09 #636316
Baz
Participant
@baz89810
Agree with Emgee it’s a bore or groove comparator.
5 March 2023 at 22:25 #636318
Andy Ash
Participant
@andyash24902
Groovy baby!

(It's the pink satin that gives it away!)

Edited By Andy Ash on 05/03/2023 22:25:57
6 March 2023 at 11:43 #636369
Roger Clark
Participant
@rogerclark
Some more photos as promised:-

As it's a verdict gauge would it be safe to assume that it's a verdict groove comparitor?

Full set of accessories plus a couple of odd ones. What would the extra clamp on the right of the pic be for?

Roger
6 March 2023 at 12:51 #636384
JohnF
Participant
@johnf59703
Yes a comparator for measuring internal grooves, used one many time and have one with all accessories — I'll take some photos later.

Made or sold by Verdict, would work for bores but there are much better tools available for this.

John
8 March 2023 at 20:31 #636780
JohnF
Participant
@johnf59703
Some more photos of mine, as you will see there are several probes that can be interchanged to use on very narrow groves and to increase the usable diameter. I use either a calliper or micrometer to make the initial zero, with care they can give good accuracy.

The additional clamp is I believe so the dial gage can be used units own on a scribing block etc.
9 March 2023 at 10:24 #636825
Roger Clark
Participant
@rogerclark
Nice one John, a few more probes than mine.
9 March 2023 at 23:50 #636984
John Reese
Participant
@johnreese12848
I have a similar device without the pistol grip. It is a real PITA to set, and I have little confidence it will hold adjustment. I do have an attachment for my 6" caliper for measuring grooves, provided the diameter is large enough.
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