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The Oregon M78-21 is a 78-drive-link replacement chain for chainsaws, built on the .325-inch pitch and 1.3 mm (0.050-inch) gauge that many mid-size saws use. Oregon is the reference brand in saw chain, and this M-series loop is aimed at homeowners and light-commercial users who cut firewood and clear storm debris. It competes with Oregon's own low-kickback and full-chisel lines and with cheaper off-brand loops: it trades a little cutting speed for smoother, more forgiving behavior in the cut. Buyers should confirm their bar's pitch, gauge and drive-link count before ordering, since a chain that does not match the bar will not run.
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Lowest price we've seen: $35.94 on Nov 11 at Lowe's. Tracked across 1 store since Nov 11.
Owners of mid-size saws generally rate Oregon loops as dependable and long-wearing, and this .325-inch chain is described as cutting smoothly and holding an edge through firewood work. Complaints center on the need to match bar specs exactly and on performance falling off once the chain dulls.
This is a replacement saw chain for chainsaws from Oregon. It has 78 drive links, a .325" pitch and a 1.3 gauge.
