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.
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100/120 Regular Mesh Grit