Patent ID: 8657385

Claim:
An assembly comprising: a holder block having a first bore extending rearwardly from a forwardly oriented front face; a cutting pick including a cutting head at a front end with a cutting tip, a shank at a rear end and a shoulder at a transition between the front end and the shank, the shoulder including a rearwardly oriented surface; and a hollow sleeve mounted in the first bore of the holder block to receive the shank of the cutting pick, the hollow sleeve including, at a forward end, a forwardly oriented face and a radially extending shoulder with a rearwardly oriented surface and, at a rearward end, a shank defining a longitudinal axis, wherein the shank of the cutting pick is inserted into the hollow sleeve, wherein the front face of the holder block and the rearwardly oriented surface of the shoulder of the hollow sleeve meet at a first interface and the forwardly oriented face of the hollow sleeve and the rearwardly oriented surface of the shoulder of the cutting pick meet at a second interface, wherein at least one of the first interface and the second interface includes a plurality of wear elements press fit into recesses in the forwardly oriented face, and wherein the wear elements are rings.