Machinist B is a simple e-Book for ITI & Engineering Course Lift and Escalator Mechanic. It contains objective questions with underlined & bold correct answers MCQ covering all topics including all about the latest & Important about cutting tools, milling operation like boring, gear cutting, spline, Basic electrical equipment and sensors, CNC turning operation, CNC milling operation, operation and part programming, simple repair and maintenance work, machining of some complicated components like bevel gears, plate components, worm wheel, worm thread, and lots more.