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Author Topic: pitch of a thumb hole  (Read 2134 times)

thewhiz

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pitch of a thumb hole
« on: October 05, 2015, 07:46:42 AM »
Is there a way to measure the pitch of a thumb hole without using the tool the pro shop uses?
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avabob

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Re: pitch of a thumb hole
« Reply #1 on: October 05, 2015, 10:59:52 AM »
I don't think you can accurately measure a pitch without a tool.  You can use a straight tool like a pencil to eyeball and tell whether it is forward or reverse, or has laterals
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lefty50

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Re: pitch of a thumb hole
« Reply #2 on: October 05, 2015, 11:43:31 AM »
Defintely need a tool. HOWEVER, I found what is an admittedly fairly cheap plastic set of pitch gauges that are ok. Not great, but for $20, it's not a bad accessory to have. YOu have to be careful and they are finicky, but I have had 2 pro shops locally that can't agree on pitches, and think having this set is a low cost way of getting a pretty darn good idea....
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JustRico

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Re: pitch of a thumb hole
« Reply #3 on: October 05, 2015, 12:54:32 PM »
How can someone that drills not agree on the angles of the holes (pitches)?
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avabob

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Re: pitch of a thumb hole
« Reply #4 on: October 05, 2015, 01:35:25 PM »
Problems with measurement arise when hand beveling and/or tape is used to customize the hole
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JustRico

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Re: pitch of a thumb hole
« Reply #5 on: October 05, 2015, 01:40:07 PM »
That has nothing to do (nor should it) with a hole drilled at an angle, that's after effects...
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JustRico

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Re: pitch of a thumb hole
« Reply #6 on: October 05, 2015, 02:10:05 PM »
You could take a pencil and center in the drilled hole and guesstimate the angle the hole is at
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Co-author of BowlTec's END GAMES ~ A Bowler's COMPLETE Guide to Bowling; Head Games ~ the MENTAL approach to bowling (and sports) & (r)eVolve
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Perfect Approach Pro Shop

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Re: pitch of a thumb hole
« Reply #7 on: October 06, 2015, 09:41:16 AM »
First, why would someone try and measure pitch with tape in the hole. First clue to find a new driller. Second, if one puts a pitch gage in a hole and it is pointing at 1/8", what's to argue? Second clue to find a new driller.
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J. Helton
Perfect Approach Pro Shop
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