Tipped pcbn inserts in 55 degree diamond shape d for hard turning ferrous metals of cast iron and hardened steel, the cbn insert cutting edges are made with polycrystalline cubic boron nitride, indexable inserts with cbn tips are precision cutting tools, which are used in cnc fine finish machining and turning roller, bearing, pumps, automobile brake disk, aircraft jet engine. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the. It can also counts the total number of words in a sentence, checks if a word is a palindrome and can generate a new sentence with almost the.