Seco Tools Inc. has announced the availability of its new grade CBN60K for finishing case-hardened steels (58 to 63 HRC) where precision and reliability are more important than high speed. Available in brazed-tip or solid inserts, CBN60K can help reduce tool inventory as well as provide 20 to 30 percent more tool life, according to the company. CBN60K performs best in speed ranges from 425 to 825 sfm, with feeds of 0.004 to 0.016 ipr and a typical finishing DOC of 0.006". It can be used with or without coolant in continuous or light interrupted cuts. The feature that contribute to CBN60K's performance level include its carefully tailored substrate comprised of small (micron sized) CBN particles with a unique particle distribution, providing increased tool life and consistency coupled with excellent component surface finish. Additionally, the new multilayer K coating in conjunction with special precoating treatments and unique PVD techniques has enhance the product performance. CBN060K also incorporates the a superalloy binder consisting of the superalloy and TiCN, which improve the mechanical properties without compromising wear resistance. The enhanced product toughness offered by a superalloy binder reportedly provides the user greater cutting edge reliability and tool life, as well as the ability to machine at higher cutting speeds. And, lastly, an optimized cutting edge promotes reliable machining.