oversize ER16 collets

Hi

Can anyone tell me of a UK supplier for 12mm oversize ER16 collets

Gloster Tools normally sell them but they are sold out and i'm struggling to find another supplier

Thanks in advance

Why not upgrade to the next size ER 20?

Regards

Brian

Yes that would be an obvious solution , unfortunately it won't work for my application

If theres no UK suppliers any info on overseas suppliers would be gratefully received

These people have them, but I don't know if they can deliver to the UK at the moment.

https://www.maschinen-werkzeuge.com/de/spannzange-er16-o-12mm.html

www.westontooling.co.uk have them listed at £20 each Doesn't necessarily mean they are in stock, of course.

I have a metric set of ER32 collets. I also purchased a few inch sized collets. My tooling is almost entirely inch size. With 1/2" and 3/8" the metric collet when hand tightened will not hold these inch sizes tight enough to keep them from sliding out of the collet. That meant 3 hands were needed to chuck these sizes: one on the spindle brake, one on the collet wrench, and one to hold the end mill.

A simple cure for those that can't multitask is to slip the tool into the collet and bring the quill down until cutter rests on something and the right amount of tool is exposed then lock the quill. You can then tighten with two hands before unlocking the quill and allowing it to rise.

I can’t multi-task when three hands are required, so I have a couple of 2-4-6 (or maybe 1-3-5?) wooden blocks handy for propping up end mills/drills while tightening the collet chuck, for the bottom end of the collet’s range.

My CNC router spindle uses ER20, although I'm often using small shank cutters. I've found that by the time you've brought a 4-3mm collet down to grip a 1/8" (3.175mm) shank, you're working quite hard and you are not going to be able to tighten by hand enough to grip the cutter. Like a previous poster, I've bought a few imperial size collets to overcome the problem. Resting the cutter on a block is a good trick, though!

Sorry this doesn't help with finding oversize ER16 collets, though...

Bit late back , but thank you for the heads up on possible suppliers

Collets hopefully now winging there way to me