Gesswein® EDM Blue Stones

Price Varies SDS proposition 65 warning
 Made in USA
12 - 60
72 - 132
144 +
Total ---
EDM Blue

Gesswein EDM Blue Finishing Stones

  • Designed to remove the tough, hard scale left by the Electric Discharge Machining (EDM) process.
  • EDM Blue is the harder formulation of our other EDM stones.
  • Contains premium-grade white aluminum oxide abrasive that fractures into sharp pieces (friable) during finishing, to extend the life of the abrasive grit.
  • Resists breakage & specifically designed for use in reciprocating profilers.
  • Medium and Hard tool steels as high as Rockwell C 62.
Style: Dimensions: Grits Available
120 180 220 320 400 600


Square stones
5/32" x 5/32" x 4"
1/4" x 1/4" x 6"
1/2" x 1/2" x 6"


Rectangle stones
1/4" x 1/8" x 6"
1/2" x 1/16" x 6"
1/2" x 1/8" x 6"
1/2" x 1/4" x 6"
1" x 1/2" x 6"


Round stones
1/4" x 6"

Important: Abrasive stones break down during mold and die polishing, grinding, tool sharpening, and dressing of cutting & grinding wheels. The resulting dust is classified by OSHA as inert or nuisance dust. Please consult the Material Safety Data Sheet for each stone; data provided therein pertains primarily to the dust produced during and after use. Please note that hazards may change when abrasive stones are used in conjunction with solvents, cutting fluids or other chemicals. For more complete information, consult the Material Safety Data Sheets of chemical products used with abrasive stone products.

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  • NEW
    For California Residents

    Warning This product can expose you to chemicals including Silica, crystalline (airborne particles of respirable size), which is known to the State of California to cause cancer. For more information go to