A saw blade contains a body, in particular of a hard material, having a cutting portion. The cutting portion has a length and a width and being provided along its length with a plurality of teeth which are formed by a plurality of grooves. Each tooth being formed by at least two grooves. There is a first plurality of grooves, the grooves of which are parallel to each other along a first direction and in that there is a second plurality of grooves, the grooves of which are parallel to each other in a second direction. The first direction and the second direction are inclined to each other such that along the length of the cutting portion at least one of the grooves of the first plurality of grooves is intersected by a groove of the second plurality of grooves.

A saw blade contains a body, in particular of a hard material, having a cutting portion. The cutting portion has a length and a width and being provided along its length with a plurality of teeth which are formed by a plurality of grooves. Each tooth being formed by at least two grooves. There is a first plurality of grooves, the grooves of which are parallel to each other along a first direction and in that there is a second plurality of grooves, the grooves of which are parallel to each other in a second direction. The first direction and the second direction are inclined to each other such that along the length of the cutting portion at least one of the grooves of the first plurality of grooves is intersected by a groove of the second plurality of grooves.

A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.

A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.

A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.

A reciprocating saw blade includes a body formed from a piece of coil stock. The body has a shank end configured to secure the blade with a reciprocating saw, a plunging end configured to enter a workpiece, and a cutting edge and opposite back edge extending between the shank end and the plunging end. The cutting edge has a plurality of teeth arranged in a pattern that includes left and right set teeth. A plurality of gullets is disposed between adjacent teeth. Each of the teeth and the gullets has substantially the same size, except that the first and third consecutive teeth immediately adjacent the plunging end have been flattened to be unset, and at least a portion of the second consecutive tooth has been removed to form an enlarged gullet between the first and third teeth.