Metric Thread forming roll die M.8 also called 0.80UNM (Right Hand thread) Habegger brand style: Non-Adjustable body diameter 8mm, Total Height 4.3mm with three Rollers made of High speed Steel then hardened. Image is representative of part in our stock.
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We purchased the ROLL DIE METRIC M.80 0.80UNM, HSS to use on a Citizen Swiss Turning Center to thread small screws made of PH17-4, hardened to H900. They work fine and have since purchased mor for repeat orders.