sharpening blade angle

[mowerman05]

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.

 

[SeniorCitizen]

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.

 

[Rivets]

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.

 

[exotion]

I keep whatever angle the blade comes with. The blade dulled when you hit wet grass or anything that's not normal dry grass

 

[mowerman05]

60ｰ 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.

looking at the end of the blade, just guessing on the angle, however it is more than a 45

 

[mowerman05]

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.

Thanks Rivets, I will give that a try as that's kinda what I was thinking but not sure.

 

[ILENGINE]

Oregon has a saying called 30-30 which means sharpen the blades at a 30 degree angle and leave a .030 thick dull edge.

 

[SeniorCitizen]

Oregon has a saying called 30-30 which means sharpen the blades at a 30 degree angle and leave a .030 thick dull edge.

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.

 

[exotion]

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.

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

 

[SeniorCitizen]

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

What's your theory?