Starrett PT27708 - Circular Carbide Scriber (1/4 x ½ x 6 inches)
Circular Carbide Scriber that is 1/4" x 1/2" x 6" in size that fits Starrett Height Gage 254 in 12", 18", 24", 300mm, 450mm, and 600mm sizes; 254 metric & english series; 259 height gage that fits 18", 24" sizes.