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How to make thin cutting discs work in grinder?

Discussion in 'The Garage' started by 84_Chevy_K10, Feb 10, 2004.

  1. 84_Chevy_K10

    84_Chevy_K10 Banned

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    I'm borrowing my dad's Milwaukee 4 1/2" electric grinder for this weekened's projects and I bought some 4 1/2 x .040" x 7/8 cutting discs. They fit it perfectly, but they're too thin so they won't tighten up. Is this an indication that I shouldn't use these thin cutting discs in this grinder, or should I just use a washer to make up the difference and go for it?

    The plate that holds the discs says to turn it over for 1/8" thick discs, but even when it's flipped over, it won't tighten against these thin cuttind discs.

    Do I have to get an 1/8" cutting disc or is it safe to cheat and make these work?
     
  2. bgchvy79

    bgchvy79 1/2 ton status

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    My Dewalt grinder came w/ a washer for using thin disks
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    [ QUOTE ]
    My Dewalt grinder came w/ a washer for using thin disks

    [/ QUOTE ]

    Cool, just wanted to make sure it was safe. If my dad HAD a washer, he doesn't anymore. /forums/images/graemlins/smile.gif
     
  4. Bubba Ray Boudreaux

    Bubba Ray Boudreaux 1 ton status

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    Sounds kind of messed up that the grinder didn't include this provision. On my cheapy HF 4" grinder, I have to flip the spacer thing over when using cutting discs.
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    This one flips over for 1/8" discs on one side and 1/4 on the other, but this disc is .040". I'd have to stack 3 on top of each other to get even close to 1/8".
     
  6. Resurrection_Joe

    Resurrection_Joe 1 ton status

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    Maybe you coudl get the appropriate washer?
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    [ QUOTE ]
    Maybe you coudl get the appropriate washer?

    [/ QUOTE ]

    Or I could buy my own grinder instead of borrowing dads. /forums/images/graemlins/rotfl.gif /forums/images/graemlins/thumb.gif
     
  8. Skigirl

    Skigirl 1/2 ton status

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    I have the same Milwaukee grinder. It didn't come with any extra washer other than the locking washer that instructs you to turn over one side for 1/8" etc. My guess is that if you stick another washer in there between the disk and supplied washeryou may not be able to crank it down tight enough that the disk won't just stop spinning with any pressure applied to the edge.

    I'd just get the right sized cutting disk - 18 or thicker.
     
  9. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    i had the same problem, just used a big azz washer for a spacer/shim thingy and it was np.

    j
     
  10. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Had my dad take a 1/2" flat washer to work today and bore the hole to 7/8" and it works flawlessly!!
     

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