| 摘要 |
A base is securable to the work surface of a machine tool. A centering element, projecting from the base, locates and braces one of a pair of opposed centers in a workpiece while the other center is lapped by a lapping tool carried by the rotatable tool holding means of the machine tool. Also carried by the base is a cutting tool for truing and dressing the lapping tool. The cutting tool is held by a tool holder movable along an axis parallel to the conical surface of the lapping tool.
|
