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They do appear to be repurposed taps. I've never seen long taps like that before, but I'm sure they would exist. This probably came from Boeing surplus or something, and somebody spent hours grinding then into punches and scribers.
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I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion- -
Like this?Attached FilesHelder Ferreira
Setubal, PortugalComment
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I would say extension taps also, and a couple of them look to be coated. TIN maybe? They can make good scribes.Originally posted by Noitoen View Post
Tap shanks are usually an under size dimension so probably not a transfer punch.
JL...........
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Pointy bitsThe shortest distance between two points is a circle of infinite diameter.
Bluewater Model Engineering Society at https://sites.google.com/site/bluewatermes/
Southwestern Ontario. CanadaComment
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