The FCP-20BL(7R) is specifically designed for Sumitomo fiber cleaver and feature high precision with long life in excellent in quality and performance. Specifications Part No. FCP-20BL(7R) Dimensions Diameter=20mm, Thickness=3mm Material Cemented carbide Applicable fiber cleaver FC-6RS,FC-6RS-C,FC-6RM,FC-6RM-C,FC-7R-S, FC-7R-M,FC-7R-F,FC-8R-FC,FC-8R-F Number of positions None (Blade is automatically rotated in cleaving) Blade life 60,000 fibers (2500 fibers x 24 positions)