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4 pcs 30mm Stone Rotary Grinding Bits with 1/4 Inch Shank, Aluminum Oxide Mounted Grinding Point for Grinding, Polishing，Deburring Ferrous Metals（4pcs 6x30 Cone Head）

4.6 (4) Write Review
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$9.49

$ 4 .99 $4.99

In Stock

About this item

  • High-Quality Materials: polishing bit Made of 80 grit aluminum oxide, excellent polishing effect and extremely durable.
  • These polishing bits have 1/4” shank, for high speed drills and easy bit changes.
  • Especially useful where larger wheels will not fit or where small abrasive wheels wear out too quickly.
  • Scope of application: Stone Grinding bit for drill Suitable for metal, automobile, aircraft, jade, hardware, stainless steel, aluminum products, wood, plastic, ceramics, etc. Perfect for grinding, polishing or deburring ferrous metals.
  • If you are not satisfied with the stone polishing bit, please feel free to contact us and we will help you out at the first time.


Product Name : Stone Rotary Grinding Bits
Product Size:
Handle Diameter: 1/4inch
Head Diameter: 30mm/1.2inch
Material: 80 grit aluminum oxide
Package Includes:4 pieces of Stone Rotary Grinding Bits


Kindle Customer
July 25, 2025
I have not tried these as grinding stones. Instead I bought them for carving and sculpting pink insulating foam. I used them with a foredom flex shaft tool and they worked very well for this purpose.Some of them have minor irregularities/chips missing which don't seem to really affect their use.
doug strong
April 25, 2025
These stone wheels were very untrue. The stone was larger on one side and thinner on the other, imbalanced and unsymmetrical so much that they could not be used. I was able to dress one of them down to a semblance of truth but the stone is quite a bit smaller now.
KBuzz
April 4, 2025
Does its designed purpose .
manuel herrera
December 2, 2024
Aaa exelente