Effectiveness of oxidizing

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Cutting Taps Metric Threads Specification of tools

I need to create a M7 X 1 and a M10 X 0.75 internal screw threads in stainless steel. Normally, I use a SU-SP spiral flute tap or a SU-PO spiral point tap with a non soluble tapping fluid for stainless steel.
The only taps I have today are SP taps in these sizes, is it ok to use these taps for stainless steel?

To create internal screw threads in stainless steel, I recommend you have the taps you have
on hand oxidized by an authorized coating company that has the correct equipment for
producing an oxidizing surface treatment. Oxidizing is a standard surface treatment offered on Yamawa SU-SP and SU-PO taps for tapping stainless steel. The benefits of this surface treatment
are explained below.

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