Which 3 Jaw Chuck and collet chuck for incoming PM1340GT

As far as collet chucks there are too general schools/preferences, one is for a 5C collet type and the other is an ER40 type. The pros and cons of each type have been extensively discussed, the 5C has less holding power and collet clamping range, but works better (in my opinion) for short or small pieces and also can be used with stock other than round with the appropriate collet. Since it has a very small clamping range, I advise using a 1/64th collet set available through QMT/or other vendors. An ER40 system has a wider clamping range but needs to hold the stock through the collet, technically they have a collapsible range of 1 MM but in my experience the accuracy suffers at the clamping extremes, so I recommend getting the collet set in imperial vs. metric if you go that route. Shar's usually stocks a D1-4 ER-40 set-true style chuck that many HM members have used with good results (you can do a search), alternative is a Set-True style 5C. I use the latter in a Bison chuck and it works very well, my understanding is that QMT/PM now stock a less expensive version set-true type 5C chuck in addition they can source the Bison/TMX. I also find the Small Tools Inc. carries a wide range of chucks and typically have very good pricing.

Bison 5" 5C Super Precision Collet Chuck Set Tru Mount 7-862-

Bison 5" 5C Super Precision Collet Chuck Set Tru Mount 7-862-

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If you plan to do gunsmithing, you may consider going 3 phase for the GT with a VFD, typically you will get better surface finish, soft start, rapid braking and variable speed on the fly. You can do a basic VFD install for around $600 inclusive of the VFD (WJ200-015SF available through QMT or other online vendors ).

The Chandox set-true type chuck is probably the most cost effective, and can be either an upgrade to the PEP package or purchased separately if in stock at QMT/PM. The Buck chucks are quite expensive for what you get, there are equal or better quality chucks for less. The Gator chucks are Chinese copies of the the Bison, many of the parts are interchangeable but the workmanship on the chuck is better with the Bison, but it varies and you can read others review of these chucks. Bison chuck is not much more. TMX use to be a distributor for Bison, but split off and has their own line of chucks manufactured in Poland. They are slightly less expensive than the Bison, a few people that have purchased the TMX noted some small issues but they worked well otherwise. The Pratt Burnerd America 3 Jaw Setrite Chuck, 6 or 8" is also a very good chuck and is what I use. QMT/PM sells Bison/TMX so worth inquiring on pricing if you go that route. A Set-True type of chuck uses an adjustable back plate that the chuck can be centered for minimum TIR. This is helpful if you need to center the work piece and if you are doing repetitive tasks that the part is removed and then rechucked. In most cases the repeatability is better than 0." but will also vary on the size of the piece you are holding.As far as collet chucks there are too general schools/preferences, one is for a 5C collet type and the other is an ER40 type. The pros and cons of each type have been extensively discussed, the 5C has less holding power and collet clamping range, but works better (in my opinion) for short or small pieces and also can be used with stock other than round with the appropriate collet. Since it has a very small clamping range, I advise using a 1/64th collet set available through QMT/or other vendors. An ER40 system has a wider clamping range but needs to hold the stock through the collet, technically they have a collapsible range of 1 MM but in my experience the accuracy suffers at the clamping extremes, so I recommend getting the collet set in imperial vs. metric if you go that route. Shar's usually stocks a D1-4 ER-40 set-true style chuck that many HM members have used with good results (you can do a search), alternative is a Set-True style 5C. I use the latter in a Bison chuck and it works very well, my understanding is that QMT/PM now stock a less expensive version set-true type 5C chuck in addition they can source the Bison/TMX. I also find the Small Tools Inc. carries a wide range of chucks and typically have very good pricing.If you plan to do gunsmithing, you may consider going 3 phase for the GT with a VFD, typically you will get better surface finish, soft start, rapid braking and variable speed on the fly. You can do a basic VFD install for around $600 inclusive of the VFD (WJ200-015SF available through QMT or other online vendors ).

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