Nitriding (NQ-5)
Case hardens the cutting tool surface to 66-68 Rockwell C and provides increased wear resistance with a black surface finish that acts as lubricant to reduce frictional heat and galling.

[table table caption=”NQ5 Coat Taps” ]
Part #,Class,Description,
10-40079, 2B Fit, 6-32 H5 NQ5 Coat Taps,BUY NOW
10-40078, 2B Fit, 4-40 H5 NQ5 Coat Taps,BUY NOW
[/table]