Welcome to Duramic Abrasives, Inc.


Nine Piece Blanchard Grinding Dimension Spotters Nine Piece Blanchard Grinding Dimension Spotters

The nine piece spotter set covers a dimensional range from .500 to 4.00; each with its own body, tongue and set screws.

Sets consist of one each in the following sizes:

  • .500 to .625
  • .625 to .875
  • .750 to 1.000
  • 1.000 to 1.375
  • 1.250 to 1.750
  • 1.500 to 2.375
  • 1.750 to 2.750
  • 2.000 to 3.000
  • 2.500 to 4.000
      Flowchart
Boat Stones and Surface Grinding Wheels We now have "Boat" Stones and Surface Grinding Wheels!

Duramic offers a complete line of Boat Stones and Surface Grinding Wheels.

Call for Stock Grades and Prices ... (810) 755-7220!

Chucks 18" and 22" Cortland Style Segmental Chucks now in Stock!

NOW IN STOCK! From Duramic Abrasive Products - 18" and 22" Cortland Style Segmental Chucks for Blanchard and Mattison Rotary Surface Grinders. Built to rigid specifications. Also available, all competitively priced:

  • Spacer Blocks
  • Segments (Our Own)
  • Segment Clamps
Segment Grade Marking Breakdown

      1
      2
      3
      4
      5
      (85A) (301) (G2) (5) (VC)

    1st Grouping - Gives type of abrasive used.

    2nd Grouping - Gives grit size and also indicates multiple grain combinations.

    3rd Grouping - Gives hardness with A1 being the softest, and K3 being the hardest.

    4th Grouping - Gives structure:

    • 8 is most open
    • 5 is our tightest
    • 4 is our medium structure.

    5th Grouping - Gives type of bond:
    • 8 is a special bond for grinding exotic metals.
    • 9 is our more friable bond for tool steels.
    • C is a tougher bond for general purpose grinding.