FIELD: production of wire springs with two branches of opposite directions. SUBSTANCE: method provides for coiling of springs by lathe and formation of U-shaped profile using tool, that is fixed in chuck of lathe. The tool is made in the form of mounted on mandrel mean for U-shaped profile shaping. It has detachable lead, left and right tool bit holders, that have body and handles, that in process of coiling are held by operator, and bushes, that are screwed in body and out of the body using nuts and fixed by stop bolts. EFFECT: improved quality of springs. 3 dwg
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