FIELD: production processes.
SUBSTANCE: proposed cutting plate has a clamping part and, at least, one cutting part, upper and lower opposed surfaces and outer side surface arranged between the former two surfaces. Note that the said upper and outer side surfaces intersect along the upper edge with its part making a cutting edge. Aforesaid cutting edge comprises the front main cutting edge and two opposed lateral cutting edges running backward and outside from the said main cutting edge towards the aforesaid clamping part, on opposite sides from the cutting part lengthwise axis. At least, a part of every lateral cutting edge features a variable front angle.
EFFECT: higher efficiency of machining.
8 cl, 7 dwg
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