Logs When it comes to processing logs, Simonds International has you covered. Primary breakdown is our specialty. We have large diameter cut off saws to cut logs to length either in the bush or at the mill. Once in the mill, we have a full range of headrig bandsaws for lumber production, from 1" wide to 16" wide. Right here in Michigan USA, we manufacture all manner of chipping knives for Pulp and OSB, veneer lathe knives for plywood and sawmill primary breakdown knives. We also have the all the circle saws you will need to process your logs, including Insert Tooth headrig saws and carbide tipped small diameter saws. Since 1832, Simonds has been a lumberman's best friend.