The vertical axis is z axis ,provide the angle along with z axis,tilt adjustment along with y and x axis, y and x .adjustment screw is M6x0.25 as the fine teeth screw ,spring reset,achieve fine tuning.the steel elastic chucking device of the top fix the chucking prism ,convenient for load and unload 

■Specification Model RSM100-W Adjustment rangeθz 7.5° Adjustment rangeθy 7° Adjustment rangeθx 7° Weight (kg) 0.85