Those using a handheld grinder for blades

Discussion in 'Lawn Mowing' started by moneyman, Jan 3, 2005.

  1. moneyman

    moneyman LawnSite Member
    Posts: 136

    For those who use a handheld grinder for blades.What type of wheel do you use. I used a friends who a special type of wheel for i think for aluminum that took to the blade real good without using much pressure.

    I forgot what type it was, any help?
     
  2. vipermanz

    vipermanz LawnSite Bronze Member
    Posts: 1,773

  3. The C Man

    The C Man LawnSite Senior Member
    from Ohio
    Posts: 527

    I'm going to use an angle grinder on my blades this year. The suggestion I read was to use a carborundum-coated/fabric backed disc on the grinder. Supposed to do the job quickly and easily.
     
  4. Rollacosta

    Rollacosta LawnSite Senior Member
    Posts: 331

    i have never sharpened my own blades, is it essential you balance the blades 'REAL' well ???
     
  5. TClawn

    TClawn LawnSite Silver Member
    Posts: 2,036

    I used a dremel too for a while to grind my blades. I now have a cheapy bench grinder from costco that does the job very quick.

    it's only about $45.00 from costco to get a bench grinder and if all your doing is grinding blades it should serve you well for a while. it really cuts down on the sharpening time if you have multipule blades.
     
  6. Gautreaux's LNG

    Gautreaux's LNG LawnSite Senior Member
    Posts: 379

    You chould balance you blades for your bearings sake.
     
  7. TGIB

    TGIB LawnSite Member
    Posts: 27

    Don't round off the tip of the blade with a grinder. If the square shape of the ends of the blades get rounded off , you will start to see uncut strips of grass, because the blade circles won't quit overlap anymore.
     
  8. shaughnessylawn

    shaughnessylawn LawnSite Member
    Posts: 117

    I sharpen all my blades with a junk ryobi hand held grinder, it takes time to get good at it at least for me save the money for now and use one
     
  9. Jason Rose

    Jason Rose LawnSite Fanatic
    Posts: 5,858

    I use a 4.5" angle grinder too. the layered sanding discs work great for me. make a nice clean edge. iv'e tried a bench grinder and hated it, and yeah it's easy to start rounding the end with one. Iv'e even tried a Lesco blade grinder and I don't know if they are just junk or what but no matter what I did to adjust it it sharpened terrible. So i stick with what works, the 4.5" angle grinder with the layered disc.
     
  10. ed2hess

    ed2hess LawnSite Fanatic
    Posts: 12,963

    The fastest way is with a 4" angle grinder with a 50 grit sanding wheel backed up with a cut off wheel. I use the cut off wheel as a backing because the standard rubber wheel they provide can get chewed up if you slip off the edge. I have done thousands of blades....and balancing don't seem to be necessary. I have never had to replace a bearing in spindle ...25 years and many mowers.
     

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