H3 collets

Hmm ... I don't see an "H 3" collet listed in the 25th edition of _Machinery's Handbook_. I *do* see a "3H" listed. A little smaller than a 5C, with a 7/8" maximum size round stock, instead of 1" through or 1-1/8" short grip for the 5C.

Bearing diameter is 1-1/8", so the question is whether you can pass a drawtube of that diameter or a little bigger through the spindle. If you can go to 1-3/8" through the spindle, go for 5C collets instead. It'll be cheaper when you need square or hex collets for a particular project later.

However -- if it is truly an "H 3", I would be interested in hearing more about its dimensions. Without those, no bets. I would guess that the 13x30 would handle 5C collets, and maybe even the 11" Logan (depends on which one I think, and Scott Logan could tell you that.

Good Luck, DoN.

Hello Don. My Logan #922, 11inch Q.C., takes 5C collets very nicely. Sure are a handy chucking method. Regards, Bob rgentry at oz dot net

Great! So does my 12x24" Clausing.

Absolutely agreed -- especially with a lever style closer, which mine has.

Enjoy, DoN.

Envy is such an ugly emotion . Mine is the 'twist to tighten'. Not nearly as quick, but works. Sure beats setting things up in the

Well ... I'll bet that *your* lathe came with a tailstock. I had to hunt one down that fit. (Granted, what it *did* come with is very useful for some things -- but still a tailstock is quite useful for general working. (What it did come with was a bed turret.)

Enjoy, DoN.