Linear Stage Actuator, 100 mm Effective Stroke, Ball Screw CNC Linear Motion Guide Rail, Double Optical Axis, C7 High-Precision, Bearing Slide Block, Manual Handwheel, for CNC Router X Y Z AxisProduct Features CNC Linear Stage Actuator This set includes one linear stage actuator with a 100 mm effective stroke and one handwheel. Compatible with 3D printers, compact CNC machines, and industrial robots High Precision Ball Screw Features a premium ball screw, dual linear guide rails, and a ball bearing slide block. Electroplated coating enhances long term accuracy and durability Silent & Smooth Sliding Built in ball bearing slide blocks deliver