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Re sharpened machine reamers

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14/12/2020 10:25:41

When I worked we regularly reground the leading edge of 35mm reamers as we had to drill and ream steel castings for excavators and "hard" spots in the casting were common. We used 3 flute drills to open out the cast bore then a reamer, all done in a capstan lathe. The reamer had a hard life but we simply cut off the damaged bit about a half inch long with a chop saw and reground them in a jig in a tool grinder. They always cut on size with no problem whatever.

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