Stupid question but...How often do you replace blade bolts on rotary cutter..??

[D2Cat]

Like sharpening your pocket knife. You can get it sharp enough to shave the hair on your arm, but you use it much and you have to resharpen it for that purpose. If you're cutting cardboard boxes that razor sharp edge will be gone quickly. A slightly "duller" edge last much longer!

 

[Stimw]

These are Brush Cutters!
Designed for serious cutting/clearing.
I have cut my 10 acre pasture with those worn out blades in my pic dull as they were.
If you want a Finish Mower get a Finish Mower!

 

[Texasmark]

Never.

 

[yanmars]

Mine get pretty dull quickly, so many rocks, anthills etc.