Abstract: A laser, square, protractor kit has a laser marker with a housing. The housing has a first positioning member. The protractor has a base with a second positioning member which cooperates with the first positioning member to position the housing on the protractor base. The protractor base also includes a third positioning member. A framing square is coupled with the third positioning member enabling the protractor to be positioned on the framing square.

Abstract: A laser marker 28 includes fixed legs 64 and 66, and a retractable leg 76, extending therefrom. With legs 64, 66 and 76 extended, the laser marker 28 can be moved about a workpiece surface 124 to selectively locate the line mark 137. With the leg 76 retracted, the legs 64 and 66 can be moved along, a workpiece edge surface 140 to selectively locate the line mark 137. The laser marker 28 can be positioned precisely on a circular saw shoe 150 by placing the legs 64 and 66 within reference holes 180 and 182 on a platform 164 on the shoe. The laser marker 28 can be positioned precisely on a protractor platform 244 by locating the legs 64 and 66 in a first circular guide track and the leg 76 in a second circular guide track 111.

Abstract: A line generating device may include a housing having a bottom surface, a top surface, a front surface connecting the top and bottom surfaces, a rear surface connecting the top and bottom surfaces, and a side surface connecting the top and bottom surfaces, a support assembly mounted within the housing. In addition, the device may include a light source mounted on the support assembly, and a lens for receiving light and projecting the light in the shape of a fan within a plane. The light plane exits through the front surface. The device is disposable on a reference surface on the bottom, rear and side surfaces.

Abstract: A laser calibration device includes a housing and a pendulum pivotally coupled to the housing and suspending downwards therefrom. A laser deck is mounted to the pendulum. At least one laser for emitting a laser line is mounted to the laser deck. The laser includes a laser barrel rotatable within a barrel holder and a laser lens pivotally coupled to the laser barrel. A first adjustment mechanism is mounted between the laser deck and the laser for adjusting pitch. A second adjustment mechanism is mounted between the barrel holder and the laser barrel for adjusting roll. A third adjustment mechanism is mounted between the laser barrel and the laser lens for adjusting crowning. A fourth adjustment mechanism mounted to the pendulum for adjusting a center of gravity of the pendulum.

Abstract: A two wire laser control circuit for a laser leveler includes a switch mounted on a housing and having an electrical current passing therethrough. The switch has a first position and a second position. A diode bridge is mounted on a pendulum. A plurality of laser diodes are mounted on the pendulum and are electrically coupled to the diode bridge. A first wire extends from the switch to the diode bridge. A second wire extends from the switch to the diode bridge. Current from the switch passes through the first wire to the diode bridge and to one of the plurality of laser diodes when the switch is in the first position. Current from the switch passes through the second wire through the diode bridge and to all of the plurality of laser diodes when the switch is in the second position.

Abstract: An improved laser level has a housing and a first shaft connected to the housing. Two bearings are disposed on the first shaft. A gimbal body is disposed on the two bearings. A second shaft is connected to the gimbal body. A third bearing is disposed on the second shaft. A pendulum is disposed on the third bearing. A laser diode is disposed on the pendulum.

Abstract: A tape measure includes a housing, a rule blade coilable within the housing, and a light plane generator disposed on the housing. The light plane generator may include a laser source for emitting a laser beam and a line lens in the path of the laser beam for converting the laser beam into a laser plane. Preferably, the laser plane intersects both the rule blade and a workpiece. The light plane generator may be pivoted about a horizontal axis and/or a vertical axis.

Abstract: A utility vacuum that may be configured to employ a disposable bag or removable and reusable container for the collection of dirt and debris that are drawn into the utility vacuum. The utility vacuum may employ one or more movable legs that are movable between an extended position, which provides relatively stable operation of the utility vacuum, and a retracted position, which reduces the footprint of the utility vacuum so that it is easier to store.