| 摘要 |
An adjustable machine reamer in which a screw connection is provided between the expansion member and the reamer shank, a threaded projection or attachment arranged on an extension at the rear end of the expansion member and a tapped bore formed in the reamer shank and having an internal screw thread adapted to the external screw thread on the threaded projection on the expansion member. The extension at the rear end of the expansion member and the reamer shank each have one annular, face ground bearing face thereon for aligning the longitudinal axes of the expansion member and of the shank relatively to each other. There are also provided an axial centering means having a ground centering bore in the reamer shank and a centering cylinder fitting into the centering bore on the extension at the rear end of the expansion member. |
