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