This is (1) loop of Archer Skip-Tooth Chainsaw Ripping Chain, the chain is 3/8 pitch .063 gauge and has 72 drive links, this chain replaces Oregon 75RD072G .
The semi-chisel cutters on this chain both left and right are in a standard sequence and have the top plate angle of each tooth set at the factory to 10 degrees for ripping wood.
Ripping chain is used for chainsaw mills for sawing slabs and boards, etc. This chain is also used for cross-cutting, felling / bucking and cutting firewood when conditions are dirty or frozen. Semi-Chisel chain stays sharper longer then chisel chain, the round cutter will always stay sharp longer