I needed some 1/4" BSF screws for the fence on the Eclipse magnetic chuck on my surface grinder and, although they are still available from some hardware suppliers like Keables, I decided to make my own using M8 socket head cap screws.
The first few turned out OK using the only 55 degree insert that I had but, I was not really happy with the results because the insert was slightly worn on all 3 tips, so I purchase a pack of 5 from T - CARBIDE on ebay. The finish on the flanks of the threads improved a lot and the difference can be seen in the photo's.
Click to play.
Attachment 353492Attachment 353493Attachment 353494
The first few turned out OK using the only 55 degree insert that I had but, I was not really happy with the results because the insert was slightly worn on all 3 tips, so I purchase a pack of 5 from T - CARBIDE on ebay. The finish on the flanks of the threads improved a lot and the difference can be seen in the photo's.
Click to play.
Attachment 353492Attachment 353493Attachment 353494
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