sharpening blade angle

M

mowerman05

Well-Known Member
what angle does everyone sharpen there blades to? the new ones I bought seem to have about a 60 degree angle but they loose that edge very rapidly. John deere blades if that matters.
 
60° from where?

If you check the hardness with a file and it files about like a common 6d nail you've found the answer why they dull so fast.
 
Oregon blade angles are 30 degrees, I have seen new JD blades at almost 50 degrees. I sharp all push mower and lawn tractor blades a about 30 degrees and rough cut mower blades about 25.
 
I keep whatever angle the blade comes with. The blade dulled when you hit wet grass or anything that's not normal dry grass
 
Rivets said:
Oregon blade angles are 30 degrees, I have seen new JD blades at almost 50 degrees. I sharp all push mower and lawn tractor blades a about 30 degrees and rough cut mower blades about 25.
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Thanks Rivets, I will give that a try as that's kinda what I was thinking but not sure.
 
Oregon has a saying called 30-30 which means sharpen the blades at a 30 degree angle and leave a .030 thick dull edge.
 
ILENGINE said:
Oregon has a saying called 30-30 which means sharpen the blades at a 30 degree angle and leave a .030 thick dull edge.
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There may be more behind this theory than Oregon is telling. Like if it has a .030 dull edge the odds of anyone cutting themselves and Oregon being sued is less likely.

Not me, may as well mount weed whacker string under the deck.
 
SeniorCitizen said:
There may be more behind this theory than Oregon is telling. Like if it has a .030 dull edge the odds of anyone cutting themselves and Oregon being sued is less likely.

Not me, may as well mount weed whacker string under the deck.
Click to expand...

I don't think that's why they do that. :)
 
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