A Multi-Duty Combination, CMB 1263 will provide quiet, positive stopping for all types of demanding terrain and punishing, multi-stop service. A semi-metallic block, CMB 63, is installed on the cam end and our organic CMB 12T is installed on the anchor end. The two products complement each other by dissipating and dispersing heat, and at the same time, developing uniform friction. High temperature performance is enhanced without detrimental effect on wear. Drum life is improved due to the ability of the friction materials pull heat from the mating surfaces.