C-Spanner for Colchester Student

I would like to swap chucks and I don't have a C-spanner.

It should be around 5.5" or 140mm diameter and would be grateful for any pointers where I could get one.

Reply to
Mike Perkins
Loading thread data ...

When I had an LO fitting Colchester I got a C spanner flame cut at a local place, then case hardened the pointy bit.


Reply to
Andrew Mawson

I'm starting to realise how scarce these beasts are!! Even adjustable C-spanners only seem to go up to 120mm diameter.

In the end I used some very large stilsons which worked rather nicely and have managed to swap the chucks over.

I though case-hardening was exactly that, being more or less a suface effect with very little penetration, and would have little effect on strength?

Many thanks for the idea. What thickness steel did you use?

Reply to
Mike Perkins

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.