FIELD: machinery and equipment for mining industry. SUBSTANCE: this relates to cutting tools of rotary heading machines. Such machines can be used for removing and crushing of concrete and asphaltic pavements of roads and other similar surfaces. Protective member of cutting tool is made in the form of disk-like washer. Surface of washer is created by two conjugated sections. Protective supporting section is made of taper or radius-like configuration. Damping section is located at angle with respect to horizontal plane. Washer is made of material possessing spring properties. EFFECT: higher efficiency. 6 cl, 2 dwg
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