... 0mm 4)Counting direct Those position indicators are used in various machinery regions, such as woodworking ... )Counting direction: I=Clockwise and E=Anticlockwise5)Hollow shaft(inside diameter): Φ20mm6)Color: O=orange, B ... and knob, lobe ball knobs with brass insert, long knobs,adjustable handle , zinc alloy adjustable handle , ... plunger, universal joints and chains. SK09 Long shaft Position indicators