Agree with Hank. If you get the Beall assortment you will sometimes have a part that won't fit tightly because the collet sizes don't overlap completely. I also got a mm set (from Bangood) to span 2 to 21 mm; works great.I have the Beal chuck and a full set of mm collets. MM over inch gives a slight better range of collet size overlap.
I also have the PSI set and agree that it is very good. Collets each have a range of diameters that they are able to clamp securely. The PSI set is imperial and in 1/8" increments. That essentially means that you are confined to working in tenon diameters that are essentially increments of 1/8" (starting with the smallest collet in the set at 1/4"). I opted to extend the basis set by purchasing two additional collets - 1/8", and 20mm. That still leaves me with gaps in tenon diameters that I am unable to grip with a collet. For example, I can' grip a 5/16" tenon. It is possible to purchase imperial collets in 1/16' steps, but so far I haven't seen the need. I keep this chart in the box to remind me of the limitations:I have the PSI collet chuck and use it all the time. Runs true, well machined, and a good price. I have been thinking of picking up a better collet assortment though.
|Nominal||Imperial (in)||Metric (mm)|
Taig lathes are not made in China, also not anything like the Chinese lathes. Beall also makes an ER32 collet for the Taig lathe.If you have a standard chinese metal mini-lathe (Taig type), I don't think the Beall collett chuck is going to work. You'll need to get a chuck that can mount directly to the lathe face plate. I got mine (and a set of metric collets) from Banggood. The chuck was around $25 and is of good quality.
Sorry, you are of course correct. I meant to say 'Sieg' instead of 'Taig'.Taig lathes are not made in China, also not anything like the Chinese lathes. Beall also makes an ER32 collet for the Taig lathe.
I believe the South Bend lathe has a MT3 taper in the spindle. If so here is a ER32 chuck for $17.
[US$17.35 29% OFF] MT3-ER32 M12 Morse Taper Milling Collet Chuck Holder CNC Cutter Arbor Mechanical Parts from Tools, Industrial & Scientific on banggood.comThis item is mainly used for MT3 milling machine to improve the hardness and endurance of the surface. The milling cutter is mounted on an arbor, where it is held in place by spacers or bushings. To take advantage of the fair price do not miss it!m.banggood.com
You will usually get better precision using the inside taper verses the outside threads. However you will be able to pass your material through your headstock using a chuck that mounts to the outside threads.
Dan you are telling me what I already thought . I should have read your post a while ago as I just ordered the beall chuck in
1 1/4 for my wood lathe. I will see how this works out and then decide what I will get for the south bend.
I looked at them. They looked good so I ordered one. Can't have to many chucks you know. I do have a 3MT to a 2MT adapter so maybe this will work out.