- Provided with a hollow face
- Chamfer form C (2-3 threads)
- For blind hole and through hole threads
The special crown-shaped front portion of this tool provides excellent accuracy even in the first stage of the cutting process. Extra clean and accurate threads can be cut in this way. The cutting chips are collected in the hollow face of the tap (internal chip collector) when cutting blind hole threads. For this tool, we recommend using paste lubrication wherever possible. Please make sure to cover not only the tool but also the walls of the hole with paste! Oil lubrication is possible only in vertical machining, if the blind hole can be completely filled with oil.