Conventional method of Grinding to Finish Hardened Steel Work material are having following limitations: time consuming process, needs accurate CNC grinding machine which is costly as compared to CNC turning centre, and lastly generates Grinding Slug which is not environmental friendly and difficult to dispose off. Sumitomo has long been one of the worlds leading company who developed different CBN grades taking into consideration the various type of tool failures. Sumitomo provide engineering solution specific to customer application. Motherson as an arm to Sumitomo Cutting Tools in India, offers variety of CBN Grades to suit customer applications.