... liner error compensation 4,axis:1,2,3 measuring instruments for massfunction 1:zero clearing 2:reset 3:mm/inch ... scale and rotary encoderadvantage:1,the high precision digital readout is specialization design,elegant appearance ,high speed of numeation,multy function2,Aluminum ... ,the catalogue is multi-role .6,automatic tool compensation for both X and YSuitable specification and type of the lathe ...