I would not get a R8 taper shank for the chuck. I would get a straight shank. It is much quicker and easier to change out the chuck with another tool with the same shank size than it is to remove and replace the R8 taper tooling. It also takes up much less headroom and wiggle room to pull down and swing the chuck through the setup if you use a short straight shank on your tooling. Besides that, it will also fit other machines easier. A tool with an R8 shank will pretty much only fit a vertical mill.
I've used an Albrecht keyless drill chuck with integral R-8 shank for years. Bought it new and is dedicated to the Bridgeport only. Works very well for me with zero issues. I have not tried to power tap with it.
I have dedicated drill chucks for each machine. US made Jacobs or Albrechts. Some have MT taper shanks for lathes, drill press, etc. And some have straight shanks for use in lathe turrets or a vertical mill head w/collet set up.
PT doc, what kind of machine is this for? Dedicated for one machine or will you share it with multiple machines?
I will be getting a keyless precision drill chuck with integral r8 shank. Options are 1/2” capacity or 5/8”. My drills go up to 1/2” and I will be getting a collet set prior to this purchase. I know better than to use a silver deeming in a keyless. When do you use the capacity above 1/2” in the 5/8” capacity? Which would you get? Thanks in advance!
Why would you not use a reduced drill shank in a keyless chuck?
When do you use the capacity above 1/2” in the 5/8” capacity? Which would you get? Thanks in advance!
The ball bearing Chuck will grip betterWhy would you not use a reduced drill shank in a keyless chuck?