昨夜、工作機械の砥石を変えた時にヘキサゴンレンチ抜き忘れて、そのまま回したら、20000rpm/分しっかり回って…

Default Widget

This is Sidebar 1. You can edit the content that appears here by visiting your Widgets panel and modifying the current widgets in Sidebar 1. Or, if you want to be a true ninja, you can add your own content to this sidebar by using the appropriate hooks.