Patent ID: 7600458

Claim:
A reciprocating saw blade engageable with a chuck of a reciprocating saw for driving the reciprocating saw blade in a reciprocating motion, the reciprocating saw blade comprising: a blade portion having a cutting edge located on a side of the blade and defining a plurality of teeth; a tang engageable with a chuck of a reciprocating saw and including a first front edge, a first side edge and a first back edge; and a stem located on an opposite side of the tang relative to the blade portion and having a substantially planar second front edge located on the same side of the blade as the cutting edge, a second side edge, a second back edge opposite the second front edge, a first corner at a junction of the first side edge of the tang and the second back edge of the stem, and a second corner at a junction of the second back edge and the second side edge of the stem, wherein the first corner defines a curvilinear corner region extending throughout an arc within the range of about 85° to about 65° between a first point of tangency with the first side edge of the tang and a second point of tangency with the second back edge of the stem, the second back edge of the stem tapers inwardly from the second point of tangency to the second corner of the stem at an angle within the range of about 5° through about 25° such that the stem defines a tapered shape that extends between a boundary region of the stem and tang and the second side edge of the stem, the stem has a first width at the boundary region and a second width at the second side edge, and the first width is greater than the second width to resist fatigue at the boundary region.