12 HOLES WITH CORNER AND SURFACE NOTCH REFERENCE STANDARD (Inch Version) Contains 12 hole sizes; 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8" and 3/4" inch diameters.( .030" X .030" CORNER NOTCH and 3 SURFACE NOTCHES .010", .020", .040" DEEP x .750" LONG.) DIMENSION: 6" (L) x 2.5" (W) x 0.25" (T) Holes SIZE: Ø3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8" and 3/4" Surface Notches: Qty 4 @ 0.010", 0.020", 0.040" deep x 0.75 long" X 0.004" wide Hole Notch Configurations: 0.030" X 0.030" (45°) corner notch @ 0.004" wide in each hole NOTE: For special alloy request by mail.

12 HOLES WITH CORNER AND SURFACE NOTCH REFERENCE STANDARD (Metric Version) Contains 12 hole sizes; 4.8mm, 5.56mm, 6.35mm, 7.14mm, 7.93mm, 8.7mm, 9.53mm, 11.1mm, 12.7mm, 14.3mm, 15.9mm and 19mm diameters. (0.76mmX0.76mm CORNER NOTCH and 3 SURFACE NOTCHES 0.25mm, 0.5mm and 1mm DEEP x 19mm LONG.) DIMENSION: 152mm (L) x 63mm (W) x 6.35mm (T) Holes SIZE: Ø4.8mm, 5.56mm, 6.35mm, 7.14mm, 7.93mm, 8.7mm, 9.53mm, 11.1mm, 12.7mm, 14.3mm, 15.9mm and 19mm Surface Notches: Qty 4 @ 0.25mm, 0.5mm and 1mm DEEP x 19mm LONG X 0.1mm wide Hole Notch Configurations: 0.76mmX0.76mm (45°) corner notch @ 0.1mm wide in each hole NOTE: For special alloy request by mail.