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2020 1025R
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If you have the deck up on it's side, why bother taking the blades off at all if you just want to sharpen them? Get a sharpening stone on a mandrel that's made for doing mower blades and let your drill do the work. That's how I sharpened mine at about 20 hours of usage. It took about 5 minutes to do all 3 blades on my 60" deck.

I used something like this which I believe I bought at homedepot.

https://www.amazon.com/Grizzly-Lawn-Gear-Sharpener-Attachment/dp/B07W3ZGQRN

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2020 1025R
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813 Posts
Impact for removal. Torque wrench for install.
In a previous life I was a mechanic for a long time. I can't say I'm anywhere close to the accuracy of a decent torque wrench by "feel", but I think I'm close enough for mower blades. :)

Yes, in a perfect world, you'd use a torque wrench for everything. I generally don't bother unless I'm working on an engine, brakes, or suspension components.

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2020 1025R
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Understood, but not impact for the install. Correct?
My 1/2" air impact wrench torques up to about 80ft/lbs on the lowest setting with my compressor putting out 150psi. So yes, I'd personally use my impact gun because I know how it performs. If you don't have that level of familiarity with your tools, use a torque wrench. :)

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Not all of the blade is sharp! But I don't touch the blade(s) while the impact is Thwack-Thwack-Thwacking...
I have gloves on and just hold it on the dull edge. If you've got an impact gun, you just need to apply enough force to keep it from rotating...which isn't very much. But that's just me. To be completely safe, it's hard to find fault with a block of wood,rubber/hockey puck/etc to jam in there to prevent the blade from spinning. Better safe than sorry.

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