A replaceable tip for a demolition tool tip may include a first sidewall having a first contact side; a second sidewall having a second contact side; and a center wall connecting the first sidewall and the second sidewall. The center wall may have a third contact side provided with a recess, the recess may have first and second abutment surfaces, and the third contact side may have a third abutment surface adjacent the recess. A channel may be defined by the first, second and third contact sides, and the channel may be configured to receive an adapter of the demolition tool.

Demolition shears include a lower jaw, an upper jaw pivotally mounted relative to the lower jaw, and a cutting blade having at least a first cutting edge and a second cutting edge, the cutting blade to be secured to one of the upper jaw and the lower jaw to expose the first cutting edge, and the cutting blade being repositionable to be secured to one of the upper jaw and the lower jaw to expose the second cutting edge.

An indexable piercing tip mounts to a nose portion of one of the jaws of a heavy-duty demolition shears so as to enclose and protect top, bottom, front, and two opposing side surfaces of the nose portion during use of the shears. The piercing tip has a first operative position in which a first set of piercing and shearing edges of the piercing tip are presented for use. When the first set gets dull or worn, the piercing tip can be rotated/indexed 180 degrees so as to present a second set of piercing and shearing edges of the piercing tip for use.

An indexable piercing tip mounts to a nose portion of one of the jaws of a heavy-duty demolition shears so as to enclose and protect top, bottom, front, and two opposing side surfaces of the nose portion during use of the shears. The piercing tip has a first operative position in which a first set of piercing and shearing edges of the piercing tip are presented for use. When the first set gets dull or worn, the piercing tip can be rotated/indexed 180 degrees so as to present a second set of piercing and shearing edges of the piercing tip for use.

A tile removal assembly includes a tool that has a handle and a head attached to the handle. The head has a claw portion extending laterally away from the handle and a chisel portion extending laterally away from the handle in an opposite direction from the claw portion. The claw portion has a thickness that is sufficiently thin to facilitate the claw portion to flex when the head is swung toward a tile is bonded to a hard floor surface. In this way the claw portion can travel between the tile and the hard floor surface to facilitate a user to drive the claw portion beneath the tile without requiring the user to swing the tool with a high degree of accuracy. The chisel portion has a thickness that is sufficiently thick to inhibit the chisel portion from flexing thereby facilitating the chisel portion to pry a fixed object.

A dust suppression system has one or more fluid dischargers configured to discharge a fluid capable of suppressing generation of dust to a work area of a building by remote operation. The fluid discharger includes a discharge nozzle configured to discharge the fluid; a first swivel joint structure including a first rotating-side body connected to and supporting the discharge nozzle and a first fixed-side body rotatably supporting the first rotating-side body; a first electric linear motion mechanism including a first support part and a first movable part supported by the first support part in a linearly movable manner; and a first rotation mechanism configured to convert linear motion of the first movable part into rotational motion to rotationally displace the first rotating-side body. The dust suppression system can further reduce power consumption as well as can accurately discharge a fluid from a fluid discharger to a predetermined work area.

A boom assembly for a demolition machine includes a main support having a support cylinder configured to raise and lower the main support, an outer boom arm attached to the main support, an inner boom arm received within the outer boom arm, the inner boom arm axially moveable relative to the outer boom arm via an inner boom cylinder, and a hydraulically actuated tool implement. Hydraulic lines for the hydraulically actuated tool implement are received within the inner boom arm.

A floor cutting tool comprising one or more blades on a beveled base that is forcibly inserted under and through material adhered to a surface, such as flooring or subflooring, that requires removal. The force is generated by striking a plate connected to the blade and beveled base with a hammer or sledgehammer, or by using an electric or pneumatic tool connected to this floor cutting tool. The cutting allows for the more efficient use of floor removal tools and quicker/easier removal of flooring and subflooring.