I bought some 6mm burrs on a 3mm shank.
I also have a Silverline rotary tool:
I find the burr walks out and I can't seem to tighten up the collets sufficiently to make it stay in place for a decent length of time.
Is there an alternative system that doesn't have this problem?
Perhaps thread/bearing lock compound?
Try a new collet, they don't last forever. You can also get mini jacobs chucks for 3.2mm machines.
NT
The link says "3.2 mm collet" -- lokks like you have a 3 mm shank in an 1/8" collet.
Thomas Prufer
1/8" collets wont hold a 3mm shank properly
I hadn't considered that, thanks.
As I said in reply to Bob, I hadn't considered the difference and the consequence.
Thanks for the suggestion.
This has an M8 collet and I thought I'd get a small chuck like you suggest and try it out.
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