| 摘要 |
The counterbore and chamfer tool 1 is to create a counter bore W and chamfer X at one end of a pre-drilled hole Y. The tool includes a tool shaft 2 and a cutting tool 4 at the end of the shaft having a first section 5 to cut the counter bore W in a workpiece Z. A second section 6 with a tapered face 6A is axially spaced from and adjacent to the first section. The second section cuts a chamfer X at one end of the counterbore remote from the pre-drilled hole. The first section may have a cutting face at one end.
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