Insize 3290-267, V-ANVIL MICROMETER_7 flutes_1.8-2.6″, 6928640328053

Graduation .0001″.
Measure the outside diameter of cutting tools (such as taps, reamers, end mills) with 3 or 5 flutes.
Ratchet stop.
Carbide measuring faces.
Supplied with setting standards