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Tim Jones
Reviewed in the United States on February 1, 2025
If you have thumb swelling issues you need this in your bag. It's a great value for the money. It functions well and is easy to use
Billy
Reviewed in the United States on January 18, 2025
Works exactly like it should
Customer
Reviewed in the United States on January 14, 2025
I use this to fine tune my thumb holes for a great fit! It's nice and sharp, plus easy to use!
BM
Reviewed in the United States on September 15, 2024
Great for adjusting your thumb hole.
Customer
Reviewed in the United States on August 20, 2024
As a bowler I was glad to find this. was able to make my thumb hole fit perfect, no more bowlers thumb
Jackal Venom
Reviewed in Singapore on May 15, 2024
An amazing DIY tool to have especially when the thumb hole gets too small and modifying the size is required to remain consistent on the lanes in bowling well. I’ve been sourcing around and the Hungdao Bowling Ball Workout Tool is the most attractive in terms of its pricing and effective usage. Highly recommended for all bowlers. Took awhile for me to write the review as I only had the opportunity recently to use it and I have been very satisfied with it.
Larry S Miller
Reviewed in the United States on March 24, 2024
Perfect!!
james johnson
Reviewed in the United States on October 25, 2024
It’s the best tool to widen thumb and finger holes in your bowling ball
Silas Jayne
Reviewed in the United States on January 23, 2024
After buying a ball and having it drilled the thumb hole was just a little bit too small and I knew that taking it to the shop the guy would take off too much using a Dremel or something like that so I got this and I am telling you what, it's the best bowling accessory I've ever bought. Also you may feel ridges very slightly after using this and I mean very slightly you may be tempted to use a fine sandpaper to smooth it out but I would suggest you try without doing that. I didn't use any sandpaper to smooth out after using this tool if anything it made the tool made it more smooth. You want your groves going straight up out of the ball except for the area the inner part of the thumb touches, which comes out at an angle so put your thumb in there and notate where the thumb comes out from, the angle of direction is what mean... and use the tool at an angle that matches the inner part of your thumb as it comes out of the ball. Eazy peazy. And don't worry about taking too much out you can do a few scrapes and test it out when you get it right you'll know
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