"Pro Sect" Bowling Ball Quarter Scale Layout Tool
Accurate bowling ball layout tool for measuring spans, grip centers, and angles—built for precision and durability.
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updated May 5, 2025
Description
Inspired by the classic Pro-Sect® tool, ideal for bowlers and pro shop techs looking to mark grip centers, measure spans, and fine-tune pin-to-PAP layouts.
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Model origin
The author marked this model as their own original creation.
