An adjusting screw (6) screwed in the hole has a head supported on the piece. The adjusting and fixation screws are screwed and unscrewed to ensure a longitudinal adjustment of the piece with respect to the tenon, and the pin with respect to a collar (1).MACIA BRUNO...
Slide the rod brake screws unscrewed, slide the sliding plate down, when you try cone tip contact with the surface of the mortar, tighten the clamp screw so that lower foot measuring stick just touch sliding top, and place the pointer at the zero point. ...