RoyG
6th April 2016, 12:58 PM
Greetings,
I picked up a box of assorted woodturning tools at a recent garage sale - a bunch of Tool Rests with 1 inch shanks that will fit my lathe, a bunch of 2MT dead centres, live centres, and a hollow live centre, a bag of assorted Carbide tool tips, plus a drill chuck with a 2MT shank - all for $10.00 - bit of a bargain.
Anyway - the drill chuck has a problem. The chuck has the Jacobs brand name marked on it, so it may be a genuine Jacob's chuck, but it could still be a made in China version, if that makes any difference.
Unfortunately, when I popped the chuck into the tail stock my lathe, I found that the tip of a drill installed in the chuck failed to align with a dead centre mounted in the headstock, with the misalignment being about 2mm. I quickly installed a known good live centre into the tail stock just to confirm that my tailstock is still aligned correctly, and the tail stock alignment is spot on.
Close examination of the Jacob's chuck and it's 2MT shank shows that the shank appears to not be seated squately in the Jacobs Taper in the back of the drill chuck. I figure that if I can remove the shank from the chuck, I can probably clean up the Jacob's Taper so that it will seat correctly.
I found one suggestion on the Internet which involved gripping the chuck in soft jaws in the vice, and giving the shank a sideways wack with a soft faced hammer to break the grip on the Jacobs Taper, but that didn't work. I've had a look down the guts of the chuck to see whether there is a screw in there that locks the shank to the chuck, and I'm pretty sure that there isn't one.
Any suggestions regarding how I should go about removing the shank from the chuck ?????
Regards,
RoyG
I picked up a box of assorted woodturning tools at a recent garage sale - a bunch of Tool Rests with 1 inch shanks that will fit my lathe, a bunch of 2MT dead centres, live centres, and a hollow live centre, a bag of assorted Carbide tool tips, plus a drill chuck with a 2MT shank - all for $10.00 - bit of a bargain.
Anyway - the drill chuck has a problem. The chuck has the Jacobs brand name marked on it, so it may be a genuine Jacob's chuck, but it could still be a made in China version, if that makes any difference.
Unfortunately, when I popped the chuck into the tail stock my lathe, I found that the tip of a drill installed in the chuck failed to align with a dead centre mounted in the headstock, with the misalignment being about 2mm. I quickly installed a known good live centre into the tail stock just to confirm that my tailstock is still aligned correctly, and the tail stock alignment is spot on.
Close examination of the Jacob's chuck and it's 2MT shank shows that the shank appears to not be seated squately in the Jacobs Taper in the back of the drill chuck. I figure that if I can remove the shank from the chuck, I can probably clean up the Jacob's Taper so that it will seat correctly.
I found one suggestion on the Internet which involved gripping the chuck in soft jaws in the vice, and giving the shank a sideways wack with a soft faced hammer to break the grip on the Jacobs Taper, but that didn't work. I've had a look down the guts of the chuck to see whether there is a screw in there that locks the shank to the chuck, and I'm pretty sure that there isn't one.
Any suggestions regarding how I should go about removing the shank from the chuck ?????
Regards,
RoyG