All wear parts use hardened high grade steel and with hardness over HRC 58°.
Inner structure is made of bearing steel, delivering more wear-resisting ability and longer service life delivering more wear-resistance. 
Designed with two clamping holes, which are suitable for metric and inch dial indicators ,plus dovetail groove  for test indicators, bringing great convenience  holding capabilities
Main parts produced on CNC machines, providing extremely accurate and high precision, ensuring high qualityand high stability
New type locking mechanism, super strong arm lock and super tight locking force guarantees long life and firm positioning 
Ergonomic-designed tightening knob provides comfortable and firm grip; Flexible and super strong rotary joints, produce smooth adjustments in any direction or location