A circular saw mounting device which rotatably supports a saw blade in a grinding machine is disclosed. The mounting device comprises a base plate adapted for mounting in a grinding machine; a centering element comprising at least two engagement elements configured to be operated in a radial direction between a mounting position (M) and a locking position (L). According to the invention the mounting device further comprises an actuator comprising a pin being configured to be operated in an axial direction (A) and arranged to engage with pivot articulated couplings to each of the engagement elements to thereby transfer a radial displacement to the at least two engagement elements and to thereby operate the at least two engagement elements between the mounting position (M) and the locking position (L).

A device for grinding pre-milled and hard metal-tipped teeth of saw bands, is provided. The device comprises a feed device for feeding a temporarily formed workpiece in a timed manner, wherein the temporarily formed workpiece is formed from a plurality of saw bands which are parallel to one another. The device further comprises a clamping device which clamps the plurality of saw bands against one another, and a grinding unit for simultaneously grinding a plurality of teeth. The grinding unit comprises a grinding wheel with a plurality of grinding profiles. A corresponding method is also provided, where the grinding unit grinds both the tooth backs and the tooth faces to final dimension in exactly one linear movement.

A method and apparatus for refurbishing an oscillating multi-tool blade (10) having a serrated forward end. The blade (10) is clamped to a support surface, a new serrated end is formed by cutting away an edge portion of the serrated end, the blade (10) is moved across a cutting direction so far as tips of teeth (12) of the new serrated end will be cut away during a following renewed cut, and the renewed cut is performed.

Saw blades and methods of machining saw blade tooth profiles of saw blades. The saw blades include a blade body and a plurality of teeth defined by the blade body. Each tooth includes a tooth back, a tooth tip, a tooth face, and a tooth gullet. In at least one tooth, a relief region extends toward the tooth back and separates the tooth face from the tooth gullet. The methods include supporting the saw blade with a blade support structure and advancing the saw blade with a blade advance structure. The methods also include dry-machining a finished tooth profile in a working portion of the saw blade in a single pass. The dry-machining includes dry-machining with an end mill by operatively translating the end mill relative to the saw blade and within a plane that is at least substantially perpendicular to an end mill rotational axis of the end mill.

Systems and methods for milling saw blade tooth profiles and saw blades with milled tooth profiles are disclosed herein. The systems include blade milling systems that include a milling head, a blade support structure, a blade advance structure, and a control system. The methods include supporting a saw blade, advancing the saw blade, and machining a finished tooth profile in a working portion of the saw blade with an end mill. In some embodiments, the machining may include operatively translating the end mill relative to the saw blade with a milling head and within a plane that is at least substantially perpendicular to an end mill rotational axis. In some embodiments, the machining may include dry-machining the finished tooth profile in the working portion of the saw blade in a single pass. The saw blades include a plurality of teeth and may include at least one relief region.

Systems and methods for milling saw blade tooth profiles and saw blades with milled tooth profiles are disclosed herein. The systems include blade milling systems that include a milling head, a blade support structure, a blade advance structure, and a control system. The methods include supporting a saw blade, advancing the saw blade, and machining a finished tooth profile in a working portion of the saw blade with an end mill. In some embodiments, the machining may include operatively translating the end mill relative to the saw blade with a milling head and within a plane that is at least substantially perpendicular to an end mill rotational axis. In some embodiments, the machining may include dry-machining the finished tooth profile in the working portion of the saw blade in a single pass. The saw blades include a plurality of teeth and may include at least one relief region.

A chain saw guide bar mounting device for facilitating maintenance of a cutting chain includes a first plate that is configured to mount to a support structure. A second plate that is coupled to the first plate extends longitudinally from proximate to a first end of the first plate. Each of a pair of couplers coupled to the second plate is configured to couple to a respective penetration that is positioned in a guide bar of a chain saw. A bracket, which is slidably coupled to the first plate, is positioned between the second plate and a second end of the first plate. A second rod is selectively couplable to the bracket. A hub is axially positioned on and rotationally coupled to the second rod. The hub is positioned to rotationally couple to a cutting chain that is positioned on the guide bar to position the cutting chain for maintenance.