Maxtaform grids with reference patterns are of the highest consistent quality, with a wide choice to choose from to suit all of your particular needs.
London Finder
LF-200
H 2, Pitch 127µ, 200 mesh
LF-400
H 7, Pitch 63µ, 400 mesh
LF-135
H 15, Pitch 188µ, 135 mesh
London Honeycomb LH-200
H 6, Pitch 235µ, Honeycomb