A comprehensive range of standard boring bars and boring rings, with sizes and shanks to suit the vast majority of milling machine, boring machine and machining centre applications, is available to complement the MICROBORE fine boring cartridges and units. Features include: • Rigid, stable construction. • Standard boring range 12mm to 465 mm. • Interchangeable boring rings for use with common adaptors. • Two-tool boring bars for combining boring and facing operations or rough and finish boring. • Special multi-tool boring bars are designed for specific customer applications.