Find out about troubleshooting for re-pointing and the effects of defective drill bits on hole quality.
1. In this site, "UT tolerances" are based on a ø0.30mm drill.
2. "Hole qualities" explains some problems which are caused uniquely by each defective drill bit.
3. "Countermeasure" assumes the use of a UNION TOOL MDP-10 repoint machine
* Please contact us about repointing drills with a diameter of ø0.15mm or less.