A saw angle gage is a square or rectangular shaped platform with two (2) electrical contacts attached to one of the four sides of the platform. A battery and a light are mounted to the platform and wired together with the two (2) electrical contacts forming an isolated electrical circuit that is open between the two (2) electrical contacts. When both of the electrical contacts touch a current conducting object, the light will illuminate. When both electrical contacts touch a current conducting object and the full length of one of the adjacent sides of the platform touches a different object, the light will illuminate, indicating a right-angle relationship between the objects. When both electrical contacts touch a current conducting object and the full length of the opposite side of the platform touches a different object, the light will illuminate, indicating a parallel relationship between the objects.

A hand-held power tool includes an SDS tool receiver and a tool housing. The SDS tool receiver includes at least one vacuuming-off channel and is configured to receive an exchangeable insert tool such that the at least one vacuuming-off channel enables removal of dust produced during operation of the exchangeable insert tool with a workpiece. The tool housing includes at least one drive unit configured to drive the exchangeable insert tool.

A cut-length indicating device for a hand power tool includes at least one guide unit configured to moveably guide at least one movably mounted and electrically operated indicating element. The device also includes at least one electric power supply unit configured to supply electric current to the at least one indicating element. The at least one guide unit and the at least one electric power supply unit are configured so as to be partially integral with each other.

A Dust Capturing Device for Reciprocating Saws is disclosed. The device is attachable to a convenational shop vacuum cleaner so that virtually all dust created by the reciprocating saw at the cutting blade is captured by the vacuum cleaner. The system is universally attachable to all powered reciprocating saws on the market. A pair of suction hoses are snugly attached to the body of the saw, from intake ports located adjacent to the saw blade to an adapter manifold that combines the two suction hoses into a single hose adaptable to the vacuum cleaner hose. The hoses are attached to the body of the saw by one or more body straps, with each body strap having a pair of hose clips extending therefrom for restraining the two suction hoses running along the body.

A miter saw includes a base assembly and a saw unit pivotably coupled to the base assembly. The saw unit includes a saw blade and a lower blade guard covering a lower portion of the saw blade. The miter saw also includes a linkage for raising the lower blade guard to expose the lower portion of the saw blade as the saw unit is lowered toward the base assembly. The linkage is operable to apply a force to the lower blade guard for holding the lower blade guard in a raised position, without any input from the operator of the miter saw and without changing the length of the linkage, to facilitate changing the saw blade.

According to embodiments of the invention, apparatuses and methods are provided for measuring and cutting elongated objects such as pipes, steel beams, etc. The apparatus may employ a precisely calibrated wheel for measuring length of a generally straight, elongated object by translation of rotational distance along an outer circumference thereof. The apparatus may further employ a lift slider, a scale, cutter, and/or a conveying structure which are generally confined to the proximity of a body frame.

A protective guard for a circular blade having a plurality of projecting edges along the circumference is provided. The protective guard includes an anchor link with a first member, a latching link detachably connectable to the anchor link, and a plurality of connected pivoted links extending between and connected to the anchor link and the latching link. The first member is adapted to engage one of the plurality of projecting edges of the circular blade, the plurality of connected pivoted links are adapted to cover the plurality of projecting edges along the circumference of the circular blade and the latching link is connected to the anchor link to secure the protective guard to the circular blade.

A protective guard for a circular blade having a plurality of projecting edges along the circumference is provided. The protective guard includes an anchor link with a first member, a latching link detachably connectable to the anchor link, and a plurality of connected pivoted links extending between and connected to the anchor link and the latching link. The first member is adapted to engage one of the plurality of projecting edges of the circular blade, the plurality of connected pivoted links are adapted to cover the plurality of projecting edges along the circumference of the circular blade and the latching link is connected to the anchor link to secure the protective guard to the circular blade.

Various aspects of an apparatus are disclosed. In a particular aspect, an apparatus comprising a cylindrical filter, a filter cleaning knob, and a filter cleaning flap is disclosed. Within such embodiment, the filter cleaning knob is configured to rotate the cylindrical filter. The filter cleaning flap is coupled to the cylindrical filter and configured to sequentially make contact with a plurality of pleated segments of the cylindrical filter as the filter cleaning knob is rotated.

A method for controlling a wall saw system during the creation of a separating cut in a workpiece between a first and a second end point is disclosed. The separating cut is performed in a plurality of main cuts. The movement of the saw head is controlled at the end points such that a boundary of the wall saw facing the end point coincides with the end point after the pivoting movement of the saw arm into the main-cut angle of the following main cut. For a free end point, the boundary of the wall saw is formed by an upper exit point of the saw blade. For an obstacle, the boundary is formed by the saw blade edge of the saw blade if the processing occurs without the blade guard or by the blade guard edge of the blade guard if the processing occurs with the blade guard.