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Post by cobbledstones on Jun 19, 2024 20:46:42 GMT -5
here is something weird, diamond milling bits for a CNC machines. I use them in my drill press to make tiny grinding wheels for tight inside curves. These are 80 grit with tons and tons of life on them $5 each. Edited to add: shaft is 1/2" diameter, Cutting head is 3/4" diameter and shafts are 5" long, and the cutting surface is 1" wide along the shaft. I also found some 220 grit in the box.  |
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Post by rockjunquie on Jun 19, 2024 20:48:18 GMT -5
here is something weird, diamond milling bits for a CNC machines. I use them in my drill press to make tiny grinding wheels for tight inside curves. These are 80 grit with tons and tons of life on them $5 each. shipping cost? Just asking. |
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Post by cobbledstones on Jun 19, 2024 23:19:12 GMT -5
here is something weird, diamond milling bits for a CNC machines. I use them in my drill press to make tiny grinding wheels for tight inside curves. These are 80 grit with tons and tons of life on them $5 each. shipping cost? Just asking. I think I can fit at least 5 in a small flat rate box ($10.40). I will get a box tomorrow and see exactly how many I can stuff in one of those boxes. |
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agatewhisperer
freely admits to licking rocks
Member since May 2020
Posts: 836
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Post by agatewhisperer on Jun 20, 2024 9:33:34 GMT -5
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Post by cobbledstones on Jun 20, 2024 17:27:53 GMT -5
they look sintered to me. I have used 1 for over 3 years now and it still cuts good. This is the best pic I can get of the 220 and 80 grits. What do you think?   |
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Post by cobbledstones on Jun 20, 2024 17:29:50 GMT -5
shipping cost? Just asking. I think I can fit at least 5 in a small flat rate box ($10.40). I will get a box tomorrow and see exactly how many I can stuff in one of those boxes. Got the box and put some in. I can fit 20 without packing material. |
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markymark
Cave Dweller 
Member since November 2015
Posts: 404 
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Post by markymark on Jun 21, 2024 0:01:26 GMT -5
What do they measure
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Post by cobbledstones on Jun 21, 2024 0:43:52 GMT -5
shaft is 1/2" diameter, Cutting head is 3/4" diameter and shafts are 5" long, and the cutting surface is 1" wide along the shaft. |
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