12 BOLT HOLES WITH 2 CORNER AND 4 SURFACE NOTCH REFERENCE STANDARD (Inch Version) 12 HOLE REFERENCE STANDARD. HOLE SIZES: 1/8", 3/16" 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" 5/8", 11/16", 3/4", 13/16", 0.030" x 0.030" CORNER NOTCH and 0.020" x 0.020" CORNER NOTCH IN EACH HOLE. Tolerance: 0.005" +/-.001", 4 SURFACE EDM NOTCHES: 0.010", 0.020", 0.030" and 0.040" DEEP x 0.750" LONG. Includes Test Report and Certificate of Conformance. DIMENSION: 6" (L) x 2.5" (W) x 0.25" (T) Holes SIZE: Ø1/8", 3/16" 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" 5/8", 11/16", 3/4", 13/16" Surface Notches: Qty4@ 0.010", 0.020", 0.030" and 0.040" DEEP x 0.750" LONG X 0.12mm wide Hole Notch Configurations: • 0.03" x 0.03" (45°) corner notch @ 0.005" wide in each hole (Qty 12) • 0.02" x 0.02" (45°) corner notch @ 0.005" wide in each hole (Qty 12) NOTE: For special alloy request by mail.

12 BOLT HOLES WITH 2 CORNER AND 4 SURFACE NOTCH REFERENCE STANDARD (Metric Version) 12 HOLE REFERENCE STANDARD. HOLE SIZES: 3.2, 4.8, 6.35, 7.94, 9.53, 11, 12.7, 14.3, 15.9, 17.5, 19 and 20.64mm, 0.76mm X 0.76mm CORNER NOTCH and 0.5mm X 0.5mm CORNER NOTCH IN EACH HOLE. Tolerance: 0.12mm +/-.001", 4 SURFACE EDM NOTCHES: 0.25, 0.5, 0.76 and 1mm deep x 19mm long. Includes Test Report and Certificate of Conformance. DIMENSION: 80mm (L) x 40mm (W) x 6.35mm (T) Holes SIZE: Ø2, 3.2, 4, 4.8, 5.16, 5.56, 6.35, 6.75, 7.14, 7.5, 7.94, 8.3mm Hole Notch Configurations: • 0.76mm X 0.76mm (45°) corner notch @ 0.15mm wide in each hole (Qty 12) • 0.5mm X 0.5mm CORNER NOTCH @0.15mm wide in each hole - (Qty 12) NOTE: For special alloy request by mail.