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Grinding HSS to use in Jones and Shipman Holders

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lordedmond:
Phil

The angles do not have yo be that close within 1 deg is fine you will find that you need to tune them for your machine and stock , do not forget to stone a small rad on the tip you do not want a sharp point , think of twice the feed rate so that it overlaps for a smooth finish.

It's not an exact science play with it and see what works for you keep the SFM down to about a third of the carbide speed , above all listen and watch the chips that wil guide you.

One last point your surface finish is only as good as the finish on the tool so use a slip stone to refine the cutting edge no need to do the whole face just a little way down will do

Have fun

Stuart

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