I need to tap some 1.4mm or maximum 1.6mm thread on grade two titanium and maybe some grade five parts. I've search both OSG and Emuge catalogs but noticed that taps for titanium seen to start from 3/4mm onward.
Is there any brand that have taps for titanium of those sizes? If not, what types of tap can I use? Carbide? HSS? Coated/non-coated? Fluteless/fluted?