Precision ground satin chrome blade hardened and tempered.
Can be used as a parallel or as a double square.
Supplied in box.
4R graduations: 8ths, 16ths, 32nds, and 64ths.
16R graduations: 32nds, 64ths, 50ths & 100ths.
E/M graduations: 32nds, 64ths, .5mm, and 1mm.