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Small Ground (GT) Inserts?

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30/03/2023 20:21:22

The smallest I found here in NZ uses the 09 square insert, in a 12mm shank holder. I relieved the lefthand side of the holder and it allows both inner and outer edges to be broken. The 09 supplier here has both sharp Al inserts and the regular steel inserts as well..With the Very sharp XXGT inserts available these days, needing to make hss tools is now down to only shapes that a standard insert does not cover.

EDM wire cutting is probably at it's lowest cost per mm at the moment, and a friendly shop with a wire edm, may do a special shaped tool for a box of beer.

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