▏ 4 in 1 counter bore combines 4 steps of hole making process such as spotting, counter bore and chamfering into one single step. This will not only reduce machining process but also reduces number of tools and tool set up time required for the each process. Besides, it can also be used for sole purpose of spotting.
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【 Features 】

＊ One insert combines spotting, counter bore, and upper and lower chamfering process. What traditionally required from 5 tools reduced to 2 tools only.
＊ Synchronized counter bore and drill diameter will have very accurate centering and reduce deflection.
＊ Besides cost saving from using different cutters and collet chucks, the entire process can be finished in 3 seconds.

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