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Your cart is empty.Flex bit guide balls for straight drilling in wall cavities The new and improved Bumper Balls Kit includes a 1 1/2 and 2 in. model. Bumper Balls keep your bits centered and stop you from “bit walking”. Compatible only with 3/16″ shaft flex bits.
Edward S.
Reviewed in the United States on January 25, 2025
Look good
austin vickers
Reviewed in the United States on January 17, 2025
Doesn’t come with bits pictured and one ball was missing
Keith Joel Marsh
Reviewed in the United States on September 16, 2024
Very useful!
Jorge Orta
Reviewed in the United States on August 18, 2024
It’s a great product. I can’t believe I buy it way long ago!
Neva J Berman
Reviewed in the United States on July 4, 2024
It did not keep me in hollow of wall
Kelly
Reviewed in the United States on December 11, 2024
If you do any drilling in walls u can’t see these are a must. Having gone thru the other side uet
johno993
Reviewed in the United States on January 2, 2024
Received the itiem .the itiem looks great.i haven't tried it yet because I just Received it.i am sure it it will work as stated. I will definitely buy again from the seller.
Phil Parent
Reviewed in Canada on August 14, 2023
This product did not fit any of my various wand or extension bits.I drilled golf ball works better.Just a cheap plastic ball with a rubber in the middle.The concept is great, tried and true but this does not fit the useI do not recommend this product
Mills
Reviewed in the United States on April 13, 2023
I used it like described, pushing down a wall from an opening about 5' high. I flexed against the far wall, and went up and down a couple of times to make sure it had the ability to travel inward.The hole still came out the far side.I will keep them in my kit as it could have been worse, but it wasn't what I had hoped for.
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