straight grooves, progressive tap, HSS-E_PM, vaporized, metric ISO-thread, right thread, Tolerance field ISO2 / 6H, forme of taper lead B (3.5-5.5 x P), cylinder shank with square piece, number of teeth 2-4 Power class Z For tough materials, such as stainless, acid- and heat-resistant steels. Length of taper lead: M1.6...M2: 2.5 x P M2.5...M30: 4 x P Hole Type: through holes. Designs: M1.6...M2: Z320V-3, reinforced shaft, DIN 371 M2.5...M10: Z320V-4, reinforced shaft, DIN 371 M12...M30: Z420V-4, falling through shaft, DIN 376
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