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ER 40 Collet Set

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doubleboost:
I am looking for a decent set of ER 40 collets
With a R8 holder
Some of the imported ones seem to cheap to be true .
I am making a chuck for my Harrison lathe
John

John Rudd:
John,
Not sure where you are looking, but I got a set of ER32 collets and an MT3 collet chuck from CTC tools...OK they may be from China but the accuracy was pretty good( not that I measured it...) and the quality seemed comparable to some of the mainstream suppliers..
Iirc, I paid around £65-70 delivered with no hidden extras...

Ed ke6bnl:
I have ER32 China nice quality just got it and have not checked the run out but fit and finish is great. still waiting on the collets. then will do a test.

stovebolt:
I've been using an ER40 chuck on my 7x12 for a couple of years now, A couple of the collets are a little
 out but not enough to matter for me.  I even use round collets to turn square bar. 
 Both the the collet chuck and the 24 peice collet set are Chinese.

 

    http://madmodder.net/index.php/topic,11821.msg139411.html#msg139411

sparky961:
A while back I bought a set from eBay.  They were probably the cheapest I could find, and I may have even mentioned it on here at the time.

The finish was horrible.  I had to file edges and remove lots of burrs.  The runout on the ones I checked wasn't great but probably ok for my hobby use.

Bottom line is that next time I get collets I'll be going for higher quality ones.

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