MrZukerman
Bronze Member
I just bought a new set of blades for my rotary cutter and was wondering should I sharpen them a little more or leave them as is? They are not near as sharp as a set of mower blades but do they need to be?
New rotary cutter blade sharpen or not?
- Thread starter MrZukerman
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Gale Hawkins
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OK as long as you are not going to get it into the ground or more than tender grass. 
The sharper the edge the faster it will break down has been my experience.
The sharper the edge the faster it will break down has been my experience.
beenthere
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Rotary cutter blades usually have a blunt edge.
At least, blunter (some say 1/8" ) than a finish mower.
But up to you to do as you wish. They don't need to be sharp to knock down brush and heavy grass.
At least, blunter (some say 1/8" ) than a finish mower.
But up to you to do as you wish. They don't need to be sharp to knock down brush and heavy grass.
Willl
Elite Member
Rocks love sharp edges, go for it.
Dead Horse
Platinum Member
Yeah, I think I over sharpen, My guss is that if you keep the blades as sharp as they were "originially" that is sufficient. Anything more prolly wears them out faster.......
Not that I have ever actualy worn a set out. they usually bend beyond usefullness or break before they are worn out.
Not that I have ever actualy worn a set out. they usually bend beyond usefullness or break before they are worn out.
Bird
Rest in Peace
The manual for the Bush Hog I had said to leave the 1/8" blunt edge. If I knew I was only going to cut grass and small weeds, I might sharpen it more, but as others have said, you'll have nicks in the leading edge pretty quickly if you start hitting rocks or heavier brush and saplings.
DMW
Platinum Member
Blunt. When backing into heavy undergrowth (bushes/saplings) sharp blades make very effective punji sticks to cause all sorts of damage to the tires. The blunt edge will still knock the plants down, but not leaving the pointed ends.
Willl
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TNhobbyfarmer
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The manual for my Rhino cutter specifically says leave cutter blades blunt. It says that rotary cutters work by using the shear force of the heavy blades spinning rather than the cutting action of smaller yard mowers and finish mowers.
