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  • #16
    I'll try by best to respond to your question Hawk. Went to the LWS, saw my buddy there. Told him what I was doing and needed for aluminum. He recommended the Rex-Cut type-27 wheel. Said he's been selling them alot lately to the trade industry. I use the the wheel for dedicated aluminum use only. Not to sure what you mean by "sigma" No real other idenification markings to assist....HTH.....
    Wheat Stalker

    Millermatic 210
    Dynasty 200DX
    Fisher CZ-5...CZ-3D..
    Trek 5500
    1966 Amphicar

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    • #17
      http://www.rexcut.com/sigma-green-listing.asp
      This link is there product page for sigma grinding & sigma for aluminum wheels.
      To all who contribute to this board.
      My sincere thanks , Pete.

      Pureox OA
      Westinghouse 300 amp AC stick
      Miller Syncrowave 250
      Hexacon 250 watt solder iron

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      • #18
        Hawk,

        After reading your post I went to the Rex-Cut site (link posted above by burninbriar)and ordered some of the Sigma-Green wheels for both steel and aluminum. Thanks for the great tip on a "new to me" product!
        Bob Sigmon
        ___________________
        Dynasty 200DX w/ Coolmate 3
        Miller Passport
        LMSW-52T Spot Welder
        A/O Setup with Meco Midget
        Miller Big Window Elite
        Quincy QT-5HD

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        • #19
          Great Stuff!

          Bob,

          I know they are expensive by regular grinding wheel standards, but very much worth it. I used a 7" Sigma Green wheel this evening that is pretty much worn out from grinding on AR400 and 110-18 welds both wet and dry. The wheel is basically slick. I used it to cut out several spray arc 5/8" rebar where I had missed a couple of measurements. It just zipped right on through them!

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          • #20
            Hawk,

            Thanks for the report. It's great to find good products that can make a project go much faster! I'll never have to use them the way that you do but if I do have to grind, I don't want it to take forever.
            Bob Sigmon
            ___________________
            Dynasty 200DX w/ Coolmate 3
            Miller Passport
            LMSW-52T Spot Welder
            A/O Setup with Meco Midget
            Miller Big Window Elite
            Quincy QT-5HD

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            • #21
              Where to buy Rex-Cut Sigma products

              Where is the best place to purchase a some Sigma grinding wheels to try. None of my local supply houses carry them and want me to order a whole case. Is it best just to order from the manufactures website or is there an internet dealer that has better prices.

              BTW, I purchased a 7" anti-vibration Bosch grinder and love it. I can grind for 3 or 4 hours at a time and still feel my hands.

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              • #22
                I purchased some to try right from the manufacturer site. They really seem to cut well and last longer than standard grinding wheels.
                Bob Sigmon
                ___________________
                Dynasty 200DX w/ Coolmate 3
                Miller Passport
                LMSW-52T Spot Welder
                A/O Setup with Meco Midget
                Miller Big Window Elite
                Quincy QT-5HD

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                • #23
                  http://www.rexcut.com/sigma-green-listing.asp
                  Barry Milton
                  ____________________

                  HTP Invertig 201
                  HTP MIG2400

                  Miller Trailblazer 302, Spoolmatic 30A, Suitcase 12RC
                  Clarke Hotshot

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