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Jeff Layman[_2_]

On 25/10/18 17:21, wrote:

But the no 1 limitation is that the bits screw into place, they're threaded. So there appears to be zero hope of it lasting decades.

I have an Oryx 50 I bought in 1963. I'm still using the original bit
(4mm? Never had a use for the smaller bit). Admittedly, it has only been
used for very intermittent hobby use, but the bit still unscrews without
problem.

--

Jeff