NC Rick
Aluminum
- Joined
- Oct 7, 2007
- Location
- Asheville, NC
Hi folks,
I have a 2hp Bridgeport knee mill and have two drill chucks at present. One Chuck is a keyless with up to 3/8” capacity mounted on a 1/2” arbor and the other is a Jacobs 16N for up to 5/8” mounted to an R8 arbor. Often times I mount the big chuck to do smaller jobs like power taping M8 or M6 holes. Using the keyless Chuck isn’t great as it won’t always reverse drive the taps.
I also often use stub length drills around 12mm and have to crank the knee to get my R8 mounted chuck in the spindle. I’m lazy... I acquired a nice used 14N chuck with a 3JT taper and was thinking of mounting it to a straight shank adapter to lessen the time needed changing setup.
Is a 1/2” arbor enough or should I go up to 3/4”? 3/4” seems more better but is also longer. I appreciate any input.
Rick
Asheville NC
I have a 2hp Bridgeport knee mill and have two drill chucks at present. One Chuck is a keyless with up to 3/8” capacity mounted on a 1/2” arbor and the other is a Jacobs 16N for up to 5/8” mounted to an R8 arbor. Often times I mount the big chuck to do smaller jobs like power taping M8 or M6 holes. Using the keyless Chuck isn’t great as it won’t always reverse drive the taps.
I also often use stub length drills around 12mm and have to crank the knee to get my R8 mounted chuck in the spindle. I’m lazy... I acquired a nice used 14N chuck with a 3JT taper and was thinking of mounting it to a straight shank adapter to lessen the time needed changing setup.
Is a 1/2” arbor enough or should I go up to 3/4”? 3/4” seems more better but is also longer. I appreciate any input.
Rick
Asheville NC