| 摘要 |
Tooling to form a countersink and counterbore in a workpiece includes: (a) a first part defining an axis and that extends axially forwardly in a bore hole in the workpiece, (b) a rotatable carrier connected with that first part, (c) and a cutter blade on the carrier, the blade projecting radially relative to the first part forming at least one cutting edge spaced outwardly of a cylinder defined by that first part, the cutting edge shaped to form the countersink and counterbore at one end of the bore hole.
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