Patent ID: 7618098
Filing Date: 2009-11-17
Classification: E21C

Abstract:
1. A cutting tool assembly, comprising: a support member having a sleeve-receiving hole therein; a cutting tool having an elongated shank; and first and second arcuate sleeve segments each having a first end, a second end, a leading edge and a trailing edge, at least one first notch extending axially from a corresponding first notch opening at the leading edge and extending towards said trailing edge, at least one second opposing notch adjacent at least one said first notch, each said second notch extending from a corresponding second notch opening at said trailing edge and extending axially towards said leading edge, and wherein said first and second arcuate sleeve segments are supported in an end-to-end fashion around a portion of said elongated shank such that when said elongated shank and first and second arcuate sleeve segments are installed within said sleeve-receiving hole in said support member, said first and second arcuate sleeve segments cooperate to prevent rotation of said elongated shank within the sleeve-receiving hole.