Abstract: A saw chain including a series of aligned drive link segments pivotally interconnected by a series of aligned connecting link segments in which certain of said segments present integral allochiral cutter tooth portions in selected spaced relation along said saw chain, in which each such latter mentioned segments have associated bearing surface formations located forwardly of said cutter tooth portions and displaceable therewith on common pivot axes to face upwardly and forwardly to mate with link segments located in advance thereof which have integral trailing extensions of selected configuration overlying the bearing surface formations to slidingly engage thereupon during substantial straight-line path of travel, the trailing extensions presenting upstanding portions projecting above the bearing surface formations a selected extent to a limit position below the following associated cutter tooth portions to thereby function as a depth gauge, the latter mentioned trailing extensions being mounted to swing thro