3 HOLE REFERENCE STANDARD BLOCK (Inch Version) COPPER

3 HOLE REFERENCE STANDARD. HOLE SIZES: 1/4", 5/16", 3/8" TOTAL OF 3 EDM CORNER NOTCHES .030" x .030". 3 EDM SURFACE NOTCHES 0.008", 0.020", 0.040". Includes Test Report and Certificate of Conformance.

DIMENSION - 3" (L) X 1.2" (W) X 0.2" (T)

EACH HOLES CONTAINS CORNER NOTCH AND (3) EDM SURFACE NOTCH

HOLE SIZE - Ø1/4", 5/16", 3/8"

CORNER NOTCH - 0.030" x 0.030", CORNER NOTCH WIDTH – 0.004"

SURFACE NOTCH DEPTH - 0.008", 0.020", 0.040", SURFACE NOTCH WIDTH - 0.004"

MATERIAL: COPPER.

NOTE:  For special alloy request by mail.