Made of granite, free from deterioration or dimensional change over time,
minimal changes in dimension due to temperature changes. Meet GGG-P-463C.
Optional accessory: stand for granite surface plate (part no. 6902),
jack for granite surface plate (part no. 6903).

3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182
3M 22396, Roloc Disc 361F, 36 YF-weight, TR, 1-1/2 in, Die R150S, 7000045091
Insize 4808, WIRE GAGE, 0-36(.3249~.0050"), 6928640330155 