History: Disc Cutter Ring
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r193916 · current
- Created Disc Cutter Ring (part): "The rolling cutting edge of a 19-inch (483 mm) disc cutter: a closed-die forged, heat-treated tool-steel ring with a narrow, flat tip. It is shrink-fitted onto the cutter hub and is replaced when worn or chipped, while the hub, shaft and bearings are rebuilt and reused."