Patent ID: 8534766
Filing Date: 2013-09-17
Classification: B28D,E21C

Abstract:
1. A system with a rotatable cuttting tool, comprising: a support block having a bore with a central axis extending therethrough and with a cylindrical portion and a first non-cylindrical portion, wherein both portions of the bore extend through a common single part and the non-cylindrical portion of the bore is fixed relative to the cylindrical portion of the bore, wherein the support block has a top surface and is configured to accept the rotatable cutting tool for mounting and securing to the support block, with the rotatable cutting tool having a cylindrical shank extending within the bore such that the cylindrical shank is rotatably supported by the cylindrical portion of the bore and is freely rotatable within the first non-cylindrical portion of the bore; wherein the cylindrical portion of the bore is adjacent to the top surface of the support block and the non-cylindrical portion is spaced from the top surface of the support block; wherein the support block is also configured to accept a non-rotatable cutting tool for mounting and securing to the support block with the non-rotatable cutting tool having a shank with a first non-cylindrical portion that is configured to engage the first non-cylindrical portion of the bore in the support block; wherein the cylindrical portion of the bore has a diameter and the non-cylindrical portion of the bore has a width, such that the maximum width of the non-cylindrical portion is less than or equal to the diameter of the cylindrical portion of the bore; and the rotatable cutting tool having a cylindrical shank mounted within the support block bore, wherein the cylindrical shank of the rotatable cutting tool includes a first cylindrical portion that is freely rotatable within the first non-cylindrical portion of the bore and a second cylindrical portion that rotatably engages the cylindrical portion of the bore.