Patent ID: 9702251
Date: 2017-07-11
CPC Classifications: E21C

Claim:
1. A cutting tool assembly, comprising: a holder having: a cutting tool having a head portion, a shank portion and a collar portion therebetween all extending along a longitudinal axis of the cutting tool; a retainer sleeve substantially surrounding the shank portion and configured for being removably received in the longitudinal bore of the holder, the retainer sleeve extending along a longitudinal axis which is substantially parallel to the longitudinal axis of the cutting tool; an outwardly biasing retention member connected to the retainer sleeve and configured for cooperating with the longitudinal bore of the holder; wherein the outwardly biasing retention member includes an elongated arcuate member having a first end connected to the retainer sleeve and an opposing, free second end; and an additional outwardly biasing retention member connected to the retainer sleeve and configured for cooperating with the longitudinal bore of the holder; wherein the additional outwardly biasing retention member includes an elongated arcuate member having a first end connected to the retainer sleeve and an opposing, free second end; wherein the second end of the outwardly biasing retention member is oppositely facing and adjacent the second end of the additional outwardly biasing retention member when viewed in a plane transverse to the longitudinal axis of the retainer sleeve.