Dual Raker is the most expensive to repair because the manufacturing technique of soldering on an additional side plate (essentially a second standard chain saw cutter cut in half lengthwise) captures 2 drive links, so a replacement cutter consists of: 1- carbide-tipped cutter, 2-drive links, 2 presets and 2 tie straps.
Cutters Edge Dual Raker carbide-tipped chain is the same chain as the Tempest "Raptor", SuperVac "Chisel" and Team Equipment's "Terminator" chains.