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bogstandard:
What length bolt Darren?

Yours has the easy adjust for the column. By using shims in the joint where you have lost the bolt, you can tram in the head in both directions, and once done, it should never move.

As I told you in my email, one of those mills was the main workhorse of my workshop for over 15 years, and it only went when I had my new mill. If looked after, and you can get used to the quirky ways of operation, they are bombproof.


John

Bourne Bill:
Micro-Machine Shop
 This site has some good tips for the round column mill. I have the Jet, and have good luck with it for about 10 years.

Darren:
Here's the missing/lost bolt.

1/2", 12tpi, 2" long not inc head.

Head size 19mm or 3/4"

Unthreaded 0.72" threaded 1.25

I've had a look around the net, not easy to find in the UK are they. Only found by the 100 so far.

bogstandard:
Darren,

Had a look thru my scavenge box, but could only find one with 1.5" of thread under the head.

But I did find a longer 1/2" BSF bolt, that if Stew has a die, could very quickly be modified to what you need, and sent on it's way.

I would single point it, but as yet, I have to try my machine out to see how accurate the imperial threads are, and I am not up to doing that much at the moment.

John

John Stevenson:
Darren,
Shoot me a snail mail address and I'll put you a couple in the post.
john [ at ] stevenson-engineers.co.uk

.JS

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