Optical Parallels
designed to inspect parallelism and flatness of measuring faces of micrometers
each glass is marked with an identification-number (glued)
ground and polished on both sides
polished...
Taper Gauge
flat version
art. no. 472370 - 472372 made of special steel, hardened
art. no. 472373 - 472375 made of technical ABS plastic
art. no. 472375 with slider made of aluminium, especially...