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  • Cleaning Equipment and Supplies
  • Crack Detection & Repair
  • Disassembly & Assembly
  • Cylinder Head Rebuilding
  • Block Rebuilding
  • Connecting Rod, Wrist Pin and Piston
  • Surface Milling and Grinding
  • Crankshaft Reconditioning
  • Flywheel Grinder Equipment & Supplies
  • Diamond Dresser Tips
  • Liquids and Chemicals
  • Gauges and Measuring Instruments
  • Equipment Manuals
  • Machine Repair Parts
  • Used Equipment and Tooling

    • Shop by Brand

  • BEAM
  • Neway
  • Sioux
  • Sunnen
  • Kwik Way
  • Van Norman
  • Black & Decker
  • Berco
  • Storm Vulcan
  • Winona Van Norman
  • View all Brands

    • Stones for Model 680, 956, 2001, and 2075

    These stones will fit Sioux model 680, 956, 2001, and 2075 

    • 100 Grit 7" Valve Grinder Stone

      100 Grit 7" Valve Grinder Stone

      100 Grit General Purpose Valve Grinder Stone.  7" Diameter,  Straight style, 11/16" overall thickness with 1 3/4" Hole Diameter With 15 degree Face Angle  Fits Sioux Model 680, 956, 2001, & 2075 Valve...

      $52.98
      Add to Cart
    • 54 grit 4" Valve Grinder Stone

      54 grit 4" Valve Grinder Stone

      54 Grit Stem Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux / Thor Model Valve Grinders Except 682 and 685L, KO Lee Model K500 and K403COEM Part...

      $32.40
      Add to Cart
    • 60 Grit 4" Valve Grinder Stem Grinding Stone

      60 Grit 4" Valve Grinder Stem Grinding Stone

      60 Grit General Purpose Valve Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux Model Valve Grinders EXCEPT 682 & 685L OEM Part Number: 81

      $36.95
      Add to Cart
    • 70 Grit 7" Valve Grinder Stone

      70 Grit 7" Valve Grinder Stone

      70 Grit General Purpose Valve Grinder Stone.  7" Diameter,  Straight style, 11/16" overall thickness with 1 3/4" Hole Diameter With 15 degree Face Angle  Fits Sioux Model 680, 956, 2001, & 2075 Valve...

      $68.40
      Add to Cart
    • 80 Grit 7" Valve Grinder Stone

      80 Grit 7" Valve Grinder Stone

      80 Grit Valve Grinder Stone for Stellite Valves.  7" Diameter,  Straight style, 11/16" overall thickness with 1 3/4" Hole Diameter With 15 degree Face Angle  Fits Sioux Model 680, 956, 2001, & 2075 Valve...

      $52.98
      Add to Cart
    • 80 Grit 7" Valve Grinder Stone Ceramic Stone

      80 Grit 7" Valve Grinder Stone Ceramic Stone

      80 Grit CERAMIC Valve Grinder Stone for Grinding Extremely hard Titanium and Diesel Valves.  7" Diameter,  Straight style, 11/16" overall thickness with 1 3/4" Hole Diameter With 15 degree Face Angle  Fits Sioux...

      $79.98
      Add to Cart
    • Ruby 4" Valve Grinder Stone

      Ruby 4" Valve Grinder Stone

      Ruby Valve Grinder Stone.  4" Diameter,  Straight Cup style, 1" overall thickness with 5/8" Hole Diameter  Fits All Sioux Model Valve Grinders EXCEPT 682 & 685L OEM Part Number: 81

      $36.95
      Add to Cart
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