... so on. They are easily mounted on the spindle and control position variable, distance between rollers, gate widths, valves. Or ... viewing angles3)Axial pitch range: from 1.0mm to 10.0mm4)Counting direction: I=Clockwise and E=Anticlockwise5)Hollow ... position indicators, indicators, bakelite handle and knob, lobe ball knobs with brass insert, long knobs,adjustable handle , zinc alloy adjustable handle ...