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Your cart is empty. Product Name : Stone Rotary Grinding Bits
Product Size:
Handle Diameter: 1/4inch
Head Diameter: 20mm/0.79inch
Material: 80 grit aluminum oxide
Package Includes:4 pieces of Stone Rotary Grinding Bits
C-Hack
2025-08-27 17:42:22
Undersized shank. WILL NOT fit a 1/4†collet. Eccentric junk. Also the media loaded up on mild steel.I can excuse some of the quality issues but lying on the description (shank diameter) gets you one star.
Customer
2025-08-25 14:05:41
Shaft size is .230. That’s not 1/4 inch as in description. 1/4 inch is .250 in decimal measure. Also every one that I received had a non centered shaft. They wobble. This is pure junk. Amazon needs to remove this from their inventory. 🤬🤬🤬🤬🤬🤬
J. McWhirter
2025-03-09 21:20:18
Read the reviews and you will see people saying these are out of round - the shank is not centered with the axis of the grinding cylinder. Know this: These reviews are dead on correct. These are junk. Chucked them in my drill and oh my - uh uh. Not using those. Total junk.
Taylor porter
2024-12-07 15:41:37
Extremely unbalanced to the point of being dangerous out of the 4 only 1 was usable wouldn’t buy again cheaply made junk
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