TH-12 high speed aluminum and stainless steel linear motion guide systems The double shaft linear guides : 1.OEM 2.Prompt delivery 3.Smooth movement 4.High precision and for the CNC machine TH-12 high speed shaft linear guide for CNC machine 1.Special design feature.and external type 2.The high precision 3.Smooth movement 4.Square board 5.BL:Y1800(N),Z2100(N) 6.This kind of linear guide is appreciated in high precision cutting machine or CNC machine .