- Joined
- Jun 12, 2014
- Messages
- 4,821
You might look at the Bison 8" combo (# 7-848-0800), I use one and great all around chuck. Also Firestopper has the same chuck and has been happy with his.. Has a little over a 2" bore and can handle stock down to 0.2", so much smaller than your typical independent of similar size. The repeatability of the scroll is around 0.002" and takes under a minute to dial down to nil TIR using the independent jaws. Probably looking at around 75-80Lbs with a backing plate. QMT does carry Bison, also Ajax Industries and Grizzly usually have decent pricing. I use a Gator backing plate which was about 1/2 the price of the Bison, the D1-5 and D1-6 backing plates do come in 6" sizes if you are looking for a smaller chuck to mount to one.
Impressive turning on that round stock. I mostly use carbide inserts, the CNMG type (80 degree diamond) works great and I use it most of the time, also like the WNMG which I use mostly for aluminum. On a larger machine like yours you can use negative rake tooling, on smaller Hp machine, neutral rake takes less Hp, so I use CCMT and CCGT types.
Impressive turning on that round stock. I mostly use carbide inserts, the CNMG type (80 degree diamond) works great and I use it most of the time, also like the WNMG which I use mostly for aluminum. On a larger machine like yours you can use negative rake tooling, on smaller Hp machine, neutral rake takes less Hp, so I use CCMT and CCGT types.