Screw-Pitch-Gauge 55°/60° UNC/UNF/MM/WW-WW/BSF set 4pcs. Art.464.150 SCALA

Metric standard and fine thread pitch from 0.25 to 6.0

Whitworth thread with 55° flank angle, 4-62 courses

British American Unit thread UNC and UNF

Whitworth BSW and BSF, flank angle 55°, 4-42 transition, 30 sheets

precisely machined from cold drawn steel, sheets, in wooden box,

German manufacturer