-
Welcome back Guest! Did you know you can mentor other members here at H-M? If not, please check out our Relaunch of Hobby Machinist Mentoring Program!
Good/bad R8 collets?
- Thread starter ttabbal
- Start date
Older thread on the subject:
Some recommendations below and a few listings. The Royal/PBA are very good, but I believe they are no longer produced. Lyndex are also very good, sometimes you can find a set at reasonable price. Vertex are also not bad for the price. I have all of these. Started out with a Chinese set that did not fit well and got returned. There are also some US brands, but expensive for current or NOS unless you get lucky. ER-40 are inherently more accurate than R-8 collets, but these are the brands I suggest in particular the Royal/PBA. Many of the so called precision collets are sourced from the same vendors.
Lyndex
Royal/PBA
Vertex
R8 Collets
I buy R8 collets when I see them on sale, Hardinge, BP, Crawford and one or two Lyndex. I only buy sizes that I need, no sets. Hardinge is supposed to be one piece construction, no threaded inserts that are pinned or staked. Can someone check their Hardinge and Crawford R8 collets and let me...
www.hobby-machinist.com
Some recommendations below and a few listings. The Royal/PBA are very good, but I believe they are no longer produced. Lyndex are also very good, sometimes you can find a set at reasonable price. Vertex are also not bad for the price. I have all of these. Started out with a Chinese set that did not fit well and got returned. There are also some US brands, but expensive for current or NOS unless you get lucky. ER-40 are inherently more accurate than R-8 collets, but these are the brands I suggest in particular the Royal/PBA. Many of the so called precision collets are sourced from the same vendors.
Lyndex
R8 CRAWFORD PBA COLLETS-600 GROUP (IMPERIAL) VARIOUS SIZES "NEW" MOST AVAILABLE | eBay
Find many great new & used options and get the best deals for R8 CRAWFORD PBA COLLETS-600 GROUP (IMPERIAL) VARIOUS SIZES "NEW" MOST AVAILABLE at the best online prices at eBay! Free shipping for many products!
www.ebay.com
R8 Collet Set- Fits Bridgeport, High Precision, Taiwan | eBay
One of the Best, 100% Made in Taiwan. Orders under 150 lbs. Orders above 150 lbs. Piscataway, NJ 08854.
www.ebay.com
I just bought a Shars set of R8 collets advertised at 0.0006" (as TIR), on sale for $58, SKU202-5134 for the 13-piece 16ths set.
The Vertex in use are much better then the stated TIR. I had some Shar's metric R-8 collets that had poor TIR (unusable) for setting up my edge finders. Lyndex, PBA and Hardinge are better. Many of my 5C are enco/Vertex Taiwan and quite good TIR. Others have bought the Vertex R8 collets and have been happy with them. So recommendation is based on actual products.
Post what sizes you're looking for in the wanted section . I'm sure many of us have a hundred or so extras laying around .
I have a small set of Lyndex collets, they seem to be pretty good. You typically just need the major sizes between 1/4 and 3/4, assuming you have a drill chuck you can employ. (1/4, 3/8, 1/2, 5/8, 3/4).