Hitek engineers offers a comprehensive range of standard boring bars and boring rings. This comes with sizes and shanks to suit the vast majority of milling machines, boring machines and machining centre applications, available to complement hitek range of fine boring cartridges and units. Features include: rigid, stable construction; standard boring range 12 to 465 mm; interchangeable boring rings for use with common adaptors; two tools boring bars for combining boring and facing operations or rough and finish boring; and special multi tool boring bars are designed for specific customer applications.