Learning from predecessors: “What are you using?”

Yesterday Ⅰ I went to check out the air saw that Yamasan uses on his heavy-duty work.
Even though it gets used like crazy, it’s still going strong and still in active service.
This is it…
 

 
↑ Model 4730…
Not to be outdone, I went ahead and bought one myself ★
Now I can cut through stuff like a champ—I’m so happy about it.