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High-performance PcBN cutting tools

— Newest generation of PcBN grade formulations & latest advances in synthesis research
— Individually matched grades with high-performance coatings
— Both high density nano-structured mono-, and multi-layer coatings are offered
— Increased utility range of the insert with excellent balance between chemical resistance & toughness
— The complete CiBN portfolio covers the PcBN application demands
— Standard offering allows for quick delivery

Recommended for high precision continuous hard turning.

— CITCO CiBN low content PcBN grades are excellent for continuous cutting of a wide range of hardened steels and powdered metallurgy components from 45-65 HRC.

— Provides excellent tool life at cutting speeds up to 250 m/min. (800 ft./min.). Precision ground edges (T-lands and hones) are capable of machining to sub-micron finishes.

— The CITCO CiBN low content PcBN is extremely wear resistant and offer a significant increase in tool life while retaining the integrity and hardness of the cutting edge.

Recommended for moderate to heavy interrupted hard turning of all common hardened steels.

— Featuring a cBN content of 55%-70%, CITCO CiBN medium content PcBN grades are an optimum balance of toughness and surface finish capability.

— These grades employ binder systems that offer good resistance to crater and flank wear.

— Typical applications include; Hardened steel, bearing steels, tool steels and powdered metals.

Recommended for excellent toughness behavior in heavily interrupted operations and very abrasive materials.

— CITCO CiBN high content PcBN grades are ideal for tough, demanding applications on hardened steels, tool steels, hard cast irons, gray cast irons, and powdered metallurgical components.

— Highly abrasion resistant for machining outlet valve seat alloys and alloyed work piece materials with high carbide content. Customers are able to achieve reliable and consistent performance on interrupted hard turning, milling and the most demanding applications.

— The combination of strength and toughness provides fine, smooth cutting edges which may be used up-sharp honed. 


CITCO CiBN™ cutting tool formats

CiBN 833 - Low content


— Low cBN content
— Ultra fine grain structure
— Extreme high resistance to crater wear
— Able to achieve sub-micron surface finish


— For moderately interrupted and high speed continuous hard turning applications

CiBN 755 - Low to medium content


— Low to medium cBN content
— Fine grain structure
— High resistance to crater wear
— Very good resistance to flank wear



— For continuous to lightly interrupted turning of hardened steels

CiBN 577 - Medium content


— Medium cBN content
— Bimodal fine grain structure
— High toughness, along with high resistance to crater wear
— Extreme resistance to flank wear


— For moderate to heavy interrupted turning of hardened steels
— Excels in abrasive tool steels and bearing steels

CiBN 286 - High content


— High cBN content
— Multimodal grain structure
— Extreme high resistance to flank wear
— Good combination of toughness and resistance to crater wear


— Ideal for most powdered metal & cast iron applications
— Used in heavily interrupted turning and hard milling of hardened steel
— Used in turning and milling of cast irons

CiBN 278 - High content, solid


— High content, solid cBN
— Multi-modal grain structure
— Very high toughness and resistance to flank wear


— Used in heavily interrupted turning and hard milling of hardened steels
— Used in very intense applications – high depth of cut, heavy interruptions
— Excels in high chrome cast iron and other specialty irons

CiBN 287 - High content, solid


— High content, solid cBN
— Unimodal grain structure
— Very favorable combination of toughness and abrasive wear


— Used in turning and milling of cast irons and powdered metals
— Proven utility grade


CITCO CiBN™ application range


CITCO CiBN™ nomenclature

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