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Polaris X-Calibar III 6" Carbide Runners

Polaris X-Calibar III 6" Carbide Runners. The 6" controlling cobalt carbide to handle high performance machines and studded tracks. . A 7/16" bar with 1" tapered carbide wearpads at both ends provide extra wear resistance. Plus hardweld in back of the front pad, and in front of the rear pad substantially increases the wear resistance.