| 摘要 |
A bit sleeve for holding a tool bit in a block having a bore that is at least partially tapered, including a collar having a front face for supporting a flange on the tool bit, a flange located rearward of the collar and having a diameter larger than that of the collar, a shank located rearward of the flange and having a diameter smaller than that of the flange, a body adapted to be received into the bore of the block and having a front spherically-shaped portion joined to a rear straight cylindrical portion, a front compression band mounted in a groove in the front portion, and a rear compression band mounted in a groove in the rear portion, wherein when the bit sleeve is installed in the bore, the first and second compression bands are compressed between the body and the bore to secure the sleeve within the bore. A//N/ ooD ~ C/## |
