Saw blade for a saw machine especially an oscillating saw machine

摘要

The saw blade (30) for an oscillating saw machine has a row of M-shaped twin teeth (38) on its toothed edge (40). Each twin tooth has two tooth tips pointing in opposite directions so as to be effective for sawing in two opposite saw blade motion directions. Each twin tooth is alternately twisted about a central twist axis in one rotation direction or another opposite rotation direction out from the saw blade plane so that the tooth tips of each twisted twin tooth point in opposite directions out from the saw blade plane.