10 HOLES WITH 1 CORNER AND 3 SURFACE NOTCH REFERENCE STANDARD (Inch Version) 10 hole Reference Standard. Contains 10 hole sizes; 1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4" inch diameters.( 0.030" x 0.030" +/- 10% x 0.006" +/-.001" Wide Corner EDM Notch and 3 Surface EDM Notches at 0.010", 0.020", 0.04" deep. Includes Test Report and Certificate of Conformance. DIMENSION: 4.8" (L) x 2.2" (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", 3/4" Surface Notches: Qty 3 @ 0.010", 0.020", 0.04" deep x 0.75" long X 0.005" wide Hole Notch Configurations: • 0.030" x 0.030" x 0.005" max width corner notch in each hole (Qty 12) NOTE: For special alloy request by mail.

10 HOLES WITH 1 CORNER AND 3 SURFACE NOTCH REFERENCE STANDARD (Metric Version) 10 hole Reference Standard. Contains 10 hole sizes; 3.2, 4.8, 6.35, 7.94, 9.53, 11, 12.7, 14.3, 15.9, 19mm diameters.( 0.76mm x 0.76mm +/- 10% x 0.15mm +/-.001" Wide Corner EDM Notch and 3 Surface EDM Notches at 0.2mm, 0.5mm, 1mm deep. Includes Test Report and Certificate of Conformance. DIMENSION: 120mm (L) x 55mm (W) x 6.35mm (T) Holes SIZE: Ø3.2, 4.8, 6.35, 7.94, 9.53, 11, 12.7, 14.3, 15.9, 19mm Hole Notch Configurations: • 0.76mm x 0.76mm x 0.15mm max width corner notch in each hole (Qty 12) NOTE: For special alloy request by mail.