03-08-2017, 12:08 AM
Is there a hole though the center of the drill chuck? If not you're probably compressing the air causing the shank to pop right off.
Take a piece of 1/2" round stock, mount it in the lathe then put the drill chuck on. Drill a hole (1/8" or so) through the chuck to allow the air to escape during assembly. You can also grind a small flat on the side of the Jarno taper shank to allow the air to escape, but I prefer the preceding method.
Take a piece of 1/2" round stock, mount it in the lathe then put the drill chuck on. Drill a hole (1/8" or so) through the chuck to allow the air to escape during assembly. You can also grind a small flat on the side of the Jarno taper shank to allow the air to escape, but I prefer the preceding method.