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At what angle do you sharpen your blades?

Discussion in 'Lawn Mowing' started by jimsny, Mar 7, 2001.

  1. jimsny

    jimsny LawnSite Member
    Messages: 33

    I have searched the blade issues up and down and all I see is frequency of blade sharpening, Grinders, and double blading.

    My questions are:

    Is the angle of the blade edge important?

    What is your favorite angle and why?

    What are the pros and cons of different angles?

  2. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    I think we decided on one thread that 30 degrees is the proper angle. I never did measure it, but I did set my RBG to the angle of a new blade when I set it up. Not all new blades are the same angle, so the main thing is keep them sharp, very sharp. ;)
  3. BobR

    BobR LawnSite Senior Member
    Messages: 714

    When you maintain the original blade angle you cant miss also you are taking off the least amount of metal each time you sharpen. Dont forget to check the balance when sharpening.
  4. Kestas

    Kestas LawnSite Member
    Messages: 11

    I think sharpening by filing is superior to grinding as a way to put a sharp edge on a blade - at least for the homeowner. Yes, grinding is faster, but filing puts a better edge. Plus, you get better control on how much metal is removed.
  5. bob

    bob LawnSite Platinum Member
    from DE
    Messages: 4,260

    I do what Eric said. With a dedicated blade grinder you angle will be the same every time. With a hand grinder you will change the original angle.
  6. BobR

    BobR LawnSite Senior Member
    Messages: 714

    Started sharpening with a 7 inch hand grinder, last year bought a Fireball commercial blade sharpener, set it and forget it, nothing finer than a piece of equipment designed for a particular job.. keep em sharp..

    LARSON LawnSite Member
    Messages: 10


    How much for one of those commercial blade sharpeners

  8. Eric ELM

    Eric ELM Husband, Father, Friend, Angel
    Messages: 4,830

    My RBG was $404 last spring, I think they are $416 now, delivered and no tax. One of the best things I bought for my lawn biz.

    LARSON LawnSite Member
    Messages: 10

    Thanks Eric
    Where did you get it from?

  10. TJLC

    TJLC LawnSite Bronze Member
    Messages: 1,308

    A.M. Leonard carries the RBG for $419.34. (1-800-543-8955) I'm sure other companies carry them also.

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