Optical edge finder We supply edge finder with led lamp, edge finder with led lamp and beep sound, and also other kinds. ... length 90mm, shank Dia. 10mm, measuring bar Dia. 10+4mmEdge Finder with LED Lamp & Beep Sound Model NoSpecificationJM-EF003point 10mm, shank dia ... 10mm, shank dia 32mm, L 164mm, acc.0.01mmEdge Finder with LED Lamp Model NoSpecificationJM-EF007point 10mm, shank dia 20mm, L ...