SwissTech: M12X1.75 Yellow Sp/Pt 376 HSS-EV OX Tap Spiral Point/Gun Nose - ISO Metric Coarse HSS-EV Oxidised Finish. For through holes. Taper lead to DIN form B. (3.5 x P to 5.5 x P). Tapping tolerance to 6H. Manufactured to DIN 371/376. Sp…View more