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Removing the Vise IT system

Posted: December 1st, 2017, 11:34 pm
by lpc300
Hi all. Just picked up a few used bowling balls. All have the Vise IT thmb. I'm going to be drilling these balls for some friends who don't use IT. How do I drill the system out so I can plug it? With the pieces in the bottom, it seems complicated.

Re: Removing the Vise IT system

Posted: December 2nd, 2017, 4:18 pm
by Dustin
Just drill in the middle of the piece in the bottom and it will come right out. Think I have used a 1/2" drill bit in the past.

Re: Removing the Vise IT system

Posted: December 3rd, 2017, 9:02 pm
by snick
you need to insert a slug and measure the pitches.
Use 3/4" bit 4" deep to drill out the ball-it and plastic molly.