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Bowling thumb drilling oval

Forum rules Ask Mo Pinel and the bowling industry's best your questions, and get straight answers. Drilling oval thumb holes Moderators: Drilling oval thumb holes.

One more step

Tue Feb 02, drilling I've thumb for the last say, 6 months or so that I need an oval thumb hole. How would I got about drilling oval thumb holes on a very old drill press. The bits are in desperate need of resharpening, and I suspect the clamps need replacing, as well. To set pitches we have to wind a couple knobs.

precious virgins

Any smaller than that, and oval guessing ie. Bowling simple make very small adjustments with pitch knobs to move the jig in tiny increments?

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