What do you look for when buying a used 4-jaw chuck?

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Couldn't agree more. When I'm hiring, I always look for candidates that have had that kind of "real world" experience. For MEs, working with...

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I've cut 4140PH 5" in diameter with abrasive cut off wheels a number of times when I was younger. It was slow but effective, no broken wheels......

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Excellent advice. Some employers will discourage their new hires from becoming PEs, presumably because their time typically becomes more expensive. These...

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No I didn't memorize that exactly, but I do remember when he started posting on this forum (including, believe it or not, that thread) and, in the parlance...

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https://www.sturdybroaching.com/products-sleeves

AFAIK, Sturdy Broaching is the only company left in the US that keeps these in stock. You...

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You failed to mention the fact that it was 21 feet long! Do you have a gas axe? I would have cut off a workable length with the torch and then cleaned...

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Hmm... maybe it's due to a language barrier but this seems rather harsh from someone who posted:



Did you ever figure out how...

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What tools do you have available? If you don't have a suitable lathe for Black Forrest's suggestion, then I will add another vote for an abrasive cut...

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Agreed!...

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I didn't know anyone was still making Bakelite... Antique hunters use the "sniff test". Apparently if you run some hot water over it or even...

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That was my thought as well but it occurred to me that whatever small gains in precision / accuracy are gained by keeping the reference at constant temperature...

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What level of accuracy do you really need? If keeping the reference chip at constant temperature is actually needed, then you'll need a variable output...

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What do you do when turning an odd shaped part or turning an eccentric part of a shaft? I keep 4 jaws specifically for the cases where I need to turn...

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Thanks guys - and big thanks for the Vertex recommendation. Like I said, I've not had to buy a chuck before so I'm not familiar with the current offerings....

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I always figured 4-jaw chucks to be relatively low risk since each jaw is moved independently. That said, I've never bought a used chuck specifically;...

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Yep - Herless seems to be an Australian re-branding of a Shun Shin product (Taiwanese). Interestingly, it looks like the brand is supported by various...

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I'm glad this is working out for you, VPT!

Doesn't look like an excessive amount of electrical do-dads to me. First picture is the main disconnect...

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Definitely heard a Kiwi accent but the transport company is Austrian.

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Many of the larger, production-oriented lathes came with "diameter calibration". It was a feature advertised on the Pacemaker lathes, where...

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Hadn't thought of that... you can actually get steel cutting blades for circular saws, now. I just ran one in my table saw to rip some large sheet metal...