Boney 0 Posted June 18, 2010 I sharpen my blades by hand and leave about a 1/8" rounded edged on the cutting edge. My friend had a good argument that I hand no answer against. He said that he sharpens his blade as sharp as a knife. I said you shouldn't do that as they will dull faster from rocks, sticks ect. He looked at me like I had three heads and said get off your lazy butt and pick up the stuff, the sharper blades are better for the grass. I had no rebuttal standing there clueless. Am I wrong here or should a person with an establish clear lawn sharpen the blades as sharp as a knife ? Thanks for any input. Share this post Link to post Share on other sites
larry8200 4 Posted June 18, 2010 Let me get this straight, we're talking a mower deck and not a roto-tiller. For breaking up sod, I like tiller blades sharper than what you are doing! You dont have to worry about dulling your blades if they're dull to start with. Your mower blades can not be to sharp! The first step to a nice lawn is a properly maintained deck with sharp blades. I sharpen my blades 4-5 times a year for my 1.5 acres. I sharpen my blades BEFORE they are dull and only take a little off them to regain their edge. And yes they are sharp as a knife. If your hitting rocks, pick them up, dig them out, do what it takes. Learn how to sharpen your blades, keep your deck clean and your lawn will love you, and so will your mower Share this post Link to post Share on other sites
goatfarmer 817 Posted June 18, 2010 I always thunk sharper is better! Share this post Link to post Share on other sites
larry8200 4 Posted June 18, 2010 quote:Originally posted by goatfarmer I always thunk sharper is better! When I'm shurp i thunk mur clurly! Share this post Link to post Share on other sites
TomSchmit 50 Posted June 18, 2010 Dull blade tear the blade of grass, leaving bruised tissue that goes brown and looks bad and stresses the plant. You want a clean cut, which comes from a sharp blade. That is why reel mowers are used on fine turf (golf gourses). The cut the grass like a scissors, a nice clean sharp cut that looks better than a rotary blade cut. Sometime I am going to find an old reel mower that will fit behind or under one of my tractors! Tom Share this post Link to post Share on other sites
TimJr 206 Posted June 18, 2010 Blades do not need to be razor sharp - check out any manufacturers instructions for resharpening, or even look at any manufacturers new blades - none are razor sharp. 2 reasons I know of - 1) they will dull quickly anyway, and 2) depending on how that edge is left, it will be jagged and tear the grass and leave it tattered similiar to how a dull butterknife blade does. The goal is to cut the grass, not beat it down. The most important factors in resharpening are to keep them touched up, don't hog into them once a year. Follow the factory bevel. Keep the very end of the cutting edge square to the end of the blade, and the cutting edge parallel to the backside of the blade. The last two tips help to minimize the chance of leaving standing grass when turning - they can affect the blade overlap. Tim Share this post Link to post Share on other sites
Vassal 0 Posted June 18, 2010 quote:Originally posted by TimJr Blades do not need to be razor sharp - check out any manufacturers instructions for resharpening, or even look at any manufacturers new blades - none are razor sharp. 2 reasons I know of - 1) they will dull quickly anyway, and 2) depending on how that edge is left, it will be jagged and tear the grass and leave it tattered similiar to how a dull butterknife blade does. The goal is to cut the grass, not beat it down. The most important factors in resharpening are to keep them touched up, don't hog into them once a year. Follow the factory bevel. Keep the very end of the cutting edge square to the end of the blade, and the cutting edge parallel to the backside of the blade. The last two tips help to minimize the chance of leaving standing grass when turning - they can affect the blade overlap. Tim That right there should be a sticky! Share this post Link to post Share on other sites
mendon-chalmers 0 Posted June 18, 2010 I assume they are not sharp from the factory because of consumer safety so the customer cant sew because he got cut getting the blades from the box. (I cant look out for myself the manufacturer has to do it for me KRAP!!!)I get mine sharp. Share this post Link to post Share on other sites
samson 0 Posted June 19, 2010 Its just like shaving, the sharper the better. Share this post Link to post Share on other sites
larry8200 4 Posted June 19, 2010 The sharper the blade, the easier it cuts the grass, stressing it less. Ever shave a good stubble with a dull razor? Share this post Link to post Share on other sites
thudpucker 0 Posted June 20, 2010 Ah'll be durned, I never ever thunk'a sharpening the Tiller blades. Share this post Link to post Share on other sites
larry8200 4 Posted June 20, 2010 quote:Originally posted by thudpucker Ah'll be durned, I never ever thunk'a sharpening the Tiller blades. for breaking up sod, Try it, you'll like it. Share this post Link to post Share on other sites
andrewk 0 Posted June 20, 2010 The key to sharpening blades is to keep the back side flat. You don't want to sharpen them like a pocket knife. Like TimJr says, follow the factory bevel, and don't cut the bottom side! Share this post Link to post Share on other sites