Reply by Abter

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Posted on lathe jacobs drill chuck question

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75 posts in 1103 days

#1 posted 06-18-2018 06:53 PM

I bought a tapping mandrill that I put in the chuck. The mandrill has too thin a shaft to hold in one of my lathe chucks, but the jacobs chuck works great. So I guess I am using the jacobs chuck as a drill chuck (although to hold a tap instead of a drill bit). I tap the pre-drilled stopper blank by turning the chuck by hand (also using tail stock for support). Once fully tapped the the tap also serves as a screw chuck, using the 1” flat metal piece permanently attached to the tap. This metal disk serves as a guide to help make the stopper bottom the same size as the stopper kit needs. This metal piece is equivalent to the correct sized bushings used to make a pen.

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