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They are smooth plug gauges. They're precision machined to inspect/verify machined holes are of the proper diameter.

Bounty: $6.00

Posted By: HelpIdentify
Listed: January 04, 2023 Ends: April 04, 2023

I'd Like to Know:

what these are and what they are used for, please use a reference link to the same,

Item History: none

Size: large one is 7-1/2" smaller ones are 4-1/2"

Markings: none


Have Something to Identify?

Opinions


1)

The wheels posted are Scaife laps. They are mounted on a motor, charged with diamond powder and used to lap diamond jewelery and other lapidary (stone shaping & polishing) We used scaife's about this size to form and polish small diam9nd tools used as optical lathe tools

References:

https://youtu.be/MMFzlwzFgKw

By: Asyrobuf

Submitted on: 04/12/2021 at 11:59AM
Rejected

Reason:
thank you for your opinion, I am having trouble verifying, the Diamond Scaife I see on google image dont have the 3 cuts in the center, can you please show a reference link

2)

They are smooth plug gauges. They're precision machined to inspect/verify machined holes are of the proper diameter.

References:

https://www.ebay.com/itm/132670280075

https://mjtoolingllc.com/holemaking/drills/6-2470-cl-x-pin-plug-gage-6-2500-0...

By: stamcon

Submitted on: 03/11/2023 at 02:35AM
Accepted