For over 50 years, I’ve been scraping my knuckles on the blade-tensioning knob of my 14″ Delta band saw. It took me half a century but here’s what I finally came up with: I removed the knob (it was jammed on so tight I actually had to cut it loose) then filed the threads down a fraction so I could force on an 11/32″ socket. This engages with a 1/4″ drive reversing ratchet wrench. Now, I even leave the wrench on the saw so I don’t have to hunt around each time I need to adjust the blade tension.
-Wilbur Golterman