Abstract: An anti-kickback saw chain including a cutter link having a cutter portion which includes a shoulder located rearwardly of a cutting edge at the forward end of the cutter portion.

Abstract: A filing guide for saw chain which includes a plate having a flat expanse joining with a curved expanse at the forward end of the guide which forms a cylinder. The guide is useable, with one side facing upwardly and the cylinder seated in a pocket defined in a saw chain, to guide a file during filing of a depth gauge and a safety projection in the saw chain. With the guide turned over from this position, and the cylinder again seated in the pocket, the guide is useable to guide a file during filing of a cutting edge in the saw chain.

Abstract: An anti-kickback saw chain including a series of left and right cutter links disposed alternatively on opposite sides of the chain. A novel safety link disposed in front of each cutter link functions to prevent a cutter portion in the cutter link, when rounding the nose of a saw bar, from cutting deeply into the wood. The safety link includes a leading projection adjacent the forward end of the link and a trailing projection adjacent the rear end of the link, the leading and trailing projections being separated by a gullet intermediate the projections.

Abstract: A method of cold-forming a substantially right-angle final bend in a chisel-type saw-chain cutter link. The method involves the progressive, staged shifting of a bend, and of the inside and outside corners therein, in a cutter blank from a starting, greater-than-right-angle bend line toward an adjacent, substantially parallel, final substantially right-angle bend line. Subsequent to the making of an initial bend in a blank, the making of later shifted bends is accompanied by the flowing of material in the blank toward the region of the later-produced bends.