An apparatus for cutting tubes, handrails and similar pieces, essentially consisting of a circular plate of small thickness constituted by particles of abrasive materials joined together by the binding action of a mass of bakelite and another synthetic resin sufficiently elastic to withstand the centrifugal forces and centripetals caused by the rotation of the disk or grinding wheel and by the action of the cut. Said plate is mounted and fixed to an axis that crosses it through its center and rotates at an angular velocity of the order of 3000 revolutions per minute or more, also presenting on the surface of each of the two faces a groove or multiple channel in the form of spiral of curvilinear radii of inclined straight lines or any other arrangement turning the disc in the opposite direction of the one of the grooves. (Machine-translation by Google Translate, not legally binding)
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