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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.
2025-08-24 15:03:58
Look good
Kelly
2025-06-30 11:23:56
If you do any drilling in walls u can’t see these are a must. Having gone thru the other side uet
Neva J Berman
2025-04-28 17:43:34
It did not keep me in hollow of wall
Keith Joel Marsh
2025-04-24 13:00:08
Very useful!
austin vickers
2025-02-23 17:47:47
Doesn’t come with bits pictured and one ball was missing
Jorge Orta
2024-12-28 13:34:36
It’s a great product. I can’t believe I buy it way long ago!
johno993
2024-12-07 13:44:59
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.
Mills
2024-12-04 10:21:00
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.
Phil Parent
2024-12-03 17:05:31
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
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