Brand -
Economy type with carbide tipped anvils. Enamel Framed. Flatness: 0.6mm for up to 300mm 1.0mm for up to 300 - 500mm Parallelism: 2+(L/100)mm (fraction rounded down). L = maximum measuring length. Metric - Ratchet Thimble Select from 22 Variants
Part number: Mitutoyo