Trumpet maintenance Tool Screw Threader Trumpet repair Tool for Yamaha 2021 NEW

Screw Thread repair tool for Trumpet very useful and practical,
If the trumpet falls, the bottom cover will not be screwed up after it has been repaired. What should I do?

Choose this tool for thread repair.

Note: because of the metric system and the imperial system, please note! This tool is YAMAHA base thread size or similar .