FIELD: process engineering.
SUBSTANCE: proposed cutting tool comprises body with channel running along its axis, cutting head arranged on the body front end and comprising channel running along its axis, face surface on front end and at least one radial groove made on face surface, and fastening screw held in the body channel to retain cutting head and furnished with at least one retaining ledge arranged crosswise relative to rotational axis in said radial groove. In compliance with another version, said cutting tool comprises body with channel running along its axis, cutting head arranged on body front end and comprising channel running along its axis, and fastening screw running along the axis through cutting head channel and retained therein. Note here that at least one coolant passage is formed between retaining screw and cutting head.
EFFECT: higher hardness of smaller-diametre cutting tool.
17 cl, 10 dwg
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