Even after 10 months of use on one machine, FT Precision does not know the full tool life of its EdgeX4 drills from West Ohio Tool. These PCD-edged drills replace the fully carbide mass production drills FT Precision previously used, which were quoted to last for 32,000 holes but rarely reached this milestone. In contrast, the EdgeX4 tooling had surpassed 371,000 holes by the time of my visit in mid-September 2023 — and was still running… read more here.