FIELD: machine building.
SUBSTANCE: invention relates to machine building and may be used in cutting tools for drilling and milling. Plate comprises opposed bottom and top surfaces with peripheral side surface with opposed first side surface connected with opposed second side surface, each including, at leas, one part made up of thrust surface to support cutting plate, top peripheral edge between peripheral side surface and top surface to included opposed first edges on intersection of first side surface with top surface, and opposed second edges on intersection of second side surfaces with top surface. Every first pair of diagonally opposite first angular edges is formed between first end of first edge and appropriate second edge while every second pair of diagonally opposite second angular edges is formed by rear end of first edge and appropriate second edge. Plate features 180°-rotary symmetry relative to axis of symmetry passing through opposed top and bottom surfaces.
EFFECT: cutting plate geometry allows feed high speed and machining ledges on workpiece.
25 cl, 12 dwg
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