Saw Blade

A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade comprising:

• a body defining a longitudinal axis;
• an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw;
• and
• a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip, each cutting tooth defining an effective relief surface that extends from the tip and is tangent to the protrusion;
• wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
• wherein a distance between effective relief surfaces of adjacent cutting teeth is at most approximately 0.06 inches.

A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade comprising:

• a body defining a longitudinal axis;
• an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw, the attachment portion being angled relative to the longitudinal axis by a tang angle;
• and
• a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip, each cutting tooth defining an effective relief surface that extends from the tip and is tangent to the protrusion;
• wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to of an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
• wherein the tips of the plurality of cutting teeth define a plane that is generally parallel to the longitudinal axis, wherein the relief surface of each cutting tooth intersects the plane at a relief angle and the effective relief surface of each cutting tooth intersects the plane at an effective relief angle, and wherein the effective relief angle has a value that is between a value of the tang angle and a value of the relief angle.

A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade configured to cut a work piece having a nail extending therethrough, the reciprocating saw blade comprising:

• a body defining a longitudinal axis;
• an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw, the attachment portion being angled relative to the longitudinal axis by a tang angle;
• and
• a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip, the protrusion of each cutting tooth inhibiting the nail from entering the gullet and contacting the rake face of an adjacent cutting tooth during cutting operations, each cutting tooth defining an effective relief surface that extends from the tip and is tangent to the protrusion;
• wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
• wherein the tips of the plurality of cutting teeth define a first plane that is generally parallel to the longitudinal axis and the protrusions of the plurality of cutting teeth define a second plane that is generally parallel to the longitudinal axis, wherein a distance between the first plane and the second plane is at most approximately 0.035 inches;
• wherein a distance between effective relief surfaces of adjacent cutting teeth is at most approximately 0.06 inches;
• and
• wherein the relief surface of each cutting tooth intersects the first plane at a relief angle and the effective relief surface of each cutting tooth intersects the first plane at an effective relief angle, and wherein the effective relief angle has a value that is between a value of the tang angle and a value of the relief angle.