extra long design, straight grooves, progressive tap, Problem-solver for deep-lying threads. No extensions necessary., HSS-E, 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 3 Power class N For long-chipping materials with a tensile strength of Rm > 350...1000 N/mm2. Length of taper lead: 4 x P Hole Type: through holes. Designs: M2.5...M6: N520-4, reinforced shaft, DIN Works standard
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