12 HOLES WITH CORNER NOTCH REFERENCE STANDARD (Metric Version) COPPER

12 HOLE REFERENCE STANDARD 4mm, 4.8mm, 5.1mm, 5.54mm, 6.35mm, 7.14mm, 7.93mm, 8.7mm, 9.53mm, 10.3mm, 11.1mm and 12.7mm, 0.76mm x 0.76mm CORNER NOTCH, 1.27mm X 1.27mm CORNER NOTCH ( 24 EDM NOTCHES TOTAL).

DIMENSION: 152mm (L) x 63mm (W) x 6.35mm (T)

Holes SIZE: Ø4mm, 4.8mm, 5.1mm, 5.54mm, 6.35mm, 7.14mm, 7.93mm, 8.7mm, 9.53mm, 10.3mm, 11.1mm and 12.7mm

Hole Notch Configurations: 

(1)0.76mm x 0.76mm (45°) corner notch @ 0.004" wide in each hole (Qty 12)

(1) 1.27mm x 1.27mm (45°) corner notch @ 0.004" wide in each hole, 180° apart (Qty 12)

MATERIAL: COPPER.

NOTE:  For special alloy request by mail.