For use in conjunction with Microbore Boring Bars and Rings The Microbore micro adjustable fine boring cartridges and units pioneered the provision of quick, easy boring tool adjustment while holding the precise limits of accuracy. Microbore offers more standard cartridges in more sizes and in more carbide grades, including the provision for indexable inserts, than any other manufacturer of adjustable cutting tools, to ensure that, the correct tool geometry can be selected for a specific application.  

For use in conjunction with Microbore Boring Bars and Rings The Microbore micro adjustable fine boring cartridges and units pioneered the provision of quick, easy boring tool adjustment while holding the precise limits of accuracy. Microbore offers more standard cartridges in more sizes and in more carbide grades, including the provision for indexable inserts, than any other manufacturer of adjustable cutting tools, to ensure that, the correct tool geometry can be selected for a specific application.