Oregon 18HX138E Harvester Saw Chain, .404" Pitch, .080" Gauge, 138 Drive Links Brand_Dan House They have proprietary Twin-Cup design

They have proprietary Twin-Cup design and can take the noise levels up to 105 dBA

This professional arborist saw has a razor-sharp edge and an ultra-fast curved blade

Designed for use in any industry where loads may be dropped onto rigging with considerable impact forces

For servicing and sharpening saw chains with a square gullet

and 7/32" for use when sharpening chain

Oregon 18HX138E Harvester Saw Chain, .404" Pitch, .080" Gauge, 138 Drive Links Brand_Dan House They have proprietary Twin-Cup design18HX saw chain is an enhanced version of Oregon's aggressive, durable 18H saw chain built exclusively for mechanized harvesters processors.