Revolutionary stem-bush design for trouble-free stem clamping (longer clamping range).
3/8" Stem Diameter and 4-48 UNF Contact Thread
Ø 8mm Stem Diameter and M2.5 x .45 Contact Thread
No through screw hole on the frame for high dust-resistance Involute curved lifting lever for smooth movement of spindle and dovetail joint for tool-less connection.
Greater rigidity in the bearing plate for reducing the retracing error (20%) and 4-screw mounting for increasing impact resistance.