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Method of joining for chuck key?

How would they have, how should I??

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pgk pgk	30/05/2020 17:40:25
2661 forum posts 294 photos	How about making the handle hole a subtle oval? It could fool the eye and add security to any adhesive. pgk
not done it yet	30/05/2020 18:22:46
7517 forum posts 20 photos	I think cross-pinning is better than threading and much better than shrink fitting. Not read any of the posts with stuck morse tapers? Simply fitting a cold taper into a warm sleeve makes things very difficult to separate. An elevated temperature for the outer would grip exceedingly effectively, especially with different coeffs. of expansion, IMO. Cheap, fast and effective.
Mick B1	30/05/2020 21:08:42
2444 forum posts 139 photos	Posted by not done it yet on 30/05/2020 18:22:46: I think cross-pinning is better than threading and much better than shrink fitting. Not read any of the posts with stuck morse tapers? Simply fitting a cold taper into a warm sleeve makes things very difficult to separate. An elevated temperature for the outer would grip exceedingly effectively, especially with different coeffs. of expansion, IMO. Cheap, fast and effective. Well of course it might work! But it's a good deal shorter than a Morse taper, and I've never seen one that a sharp tap on a tapered drift wouldn't separate, unless it was rusted in past redemption. We all know they're supposed to drive on the taper, not the tang - but we've equally most of us seen twisted tangs, too. I'm only expressing a personal preference, but myself I'd not only cross-pin it, I wouldn't try to conceal it either, so that another engineer could see how to fix it if it did eventually fail in one way or another. Even if it's an attractive one, it's a tool, not a piece of jewellery.

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