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Your cart is empty.After intensive research, we present to you, the stained glass artist, TWOFERS Glass Grinding Bits. TWOFERS grinding bits offer more grinding surface than any other bit, superior quality, and an extended grinding life TWOFERS diamond abrasive grinding surface is designed to maximize bite and allows for an extra long life and smooth uniform grinding. REASONABLY PRICED. HIGH QUALITY. LONG LASTING. DEPENDABLE GRINDING BITS. TWOFERS. Cutaway photo showcasing the many features of TWOFER grinder bits. (Click to enlarge) During the manufacturing process, bit samples are randomly tested for quality control. Bits are tested by grinding steel with a hardness rating of HRC 55-58. Each bit batch tested must endure 10 hours of continuous work with a constant lateral pressure of ~10 lbs. driving the test bar into the bit abrasive for the lot to pass inspection.
Engineer: Wise & Retired
Reviewed in the United States on February 13, 2024
Out of 2 bits, one was out of balance. It made my Gryphon Glass grinder (spinning at 3500 rpm) shake badly. I emailed the company so they could replace the defective one and they never responded! So, I effectively paid $31 for one good bit — NOT a good deal. I won’t buy again!
Does not fit
Reviewed in the United States on October 7, 2024
I bought 4 of these bits and none of them fit my standard glass grinder. Unfortunately I tried them out after the return period closed so now I’m out $60 for four useless bits. Do not buy!!
Adrian Wegner
Reviewed in the United States on September 3, 2022
Good Value ...
R. Miranda
Reviewed in the United States on August 27, 2022
These worked out great! I bought them because they were cheaper than the glass star, no complaints very happy with how they work
H
Reviewed in the United States on October 28, 2021
Great , will continue to order this product
Customer
Reviewed in the United States on October 22, 2020
I liked the product. It works well.
Kindle Customer
Reviewed in the United States on August 8, 2019
Make sure you get a variety of diamond grit size. The coarse bits are great for removing glass fast, but if you need a smooth finish edge (like I do shaping pieces of mirror) you will want something with a finer grit. And at these prices, it is not a hardship getting two sets.
Joanne
Reviewed in the United States on September 11, 2015
Two day delivery is a blessing for a glass work enthusiast. Great price to the door. Have used twofers for many years to lessen the costs of a very expensive hobby....Me
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