Sipcon instrument industries manufacturesoffers a unique, accurate and compact profile projector. This projector is used for easy and quick accurate measurements of outer or inner radius of bearing in the process of machining. This has been developed by shinko-seiki, japan is , a pioneer manufacturer of profile projectors. To control the quality and increase production, tthis projector is applied in can be used on production line at the factory so it will definitely help to control the quality and increase production. Model st200lt of the projector is developeddesigned for outer radius measurement and st-205lt for inner radius measurement. The projectors are offered with 20x standard lens are provided with these projectors and optionally can be supplied with 10x, 50x and 10x lenses.