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Gearheads
Do you have to sharpen new lawnmower blades?
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<blockquote data-quote="kingfish" data-source="post: 4080087" data-attributes="member: 50496"><p>A razors edge won't last long, depending on the hardness of the steel, that edge will be gone in one or two uses. My test for proper blade sharpness is when I drag my fingers across the edge, I like it to feel like it's just starting to grab the skin rather than sliding over it. Anything beyond that won't last long. I prefer to use a file to sharpen my blades vs a grinder. Grinders overheat the metal and take the temper out of it which makes the blade get duller quicker. When I get it down to the original edge angle, I increase the bevel angle to make the edge a little tougher and longer lasting.</p></blockquote><p></p>
[QUOTE="kingfish, post: 4080087, member: 50496"] A razors edge won't last long, depending on the hardness of the steel, that edge will be gone in one or two uses. My test for proper blade sharpness is when I drag my fingers across the edge, I like it to feel like it's just starting to grab the skin rather than sliding over it. Anything beyond that won't last long. I prefer to use a file to sharpen my blades vs a grinder. Grinders overheat the metal and take the temper out of it which makes the blade get duller quicker. When I get it down to the original edge angle, I increase the bevel angle to make the edge a little tougher and longer lasting. [/QUOTE]
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