Abstract: A cutting tool adapter that, in the preferred embodiment, removably attaches to a rotary power tool, such as die grinder or the like, to convert the rotary power tool into a cutting tool for cutting asphalt composition shingles, linoleum flooring, carpet, drywall and other work materials. In a preferred embodiment, the cutting tool adapter comprises an adapter body, a blade support integral with the adapter body, a cutting blade removably attached to the blade support and a vibrating mechanism disposed inside a chamber of the adapter body and rotatably connected to a rotating assembly of the power tool to rotate therewith and vibrate the cutting blade. In a preferred embodiment, the vibrating mechanism comprises an elongated shaft having one or more eccentric weights attached thereto and disposed above the cutting blade. One or more bearings attached to the shaft can be used to rotatably support the shaft inside the chamber.

Abstract: A cutting tool attachment that attaches to a vibrating tool, such as a vibrating sander or the like, to convert the vibrating tool to a cutting tool for cutting asphalt composition shingles, carpet, drywall and other work materials. In a preferred embodiment, the cutting tool attachment comprises a bracket member that removably attaches to the base of a vibrating sander. A cutting blade, particularly one configured for the type of work material to be cut, removably attaches to the bracket member. In a preferred embodiment, an extension member interconnects the cutting blade and bracket member. The bracket member attaches by use of screws, sliding engagement with a plurality of side engaging members, clamping mechanisms and/or by use of a variety of other attaching mechanisms. Once attached, the vibrating tool vibrates the bracket member, which vibrates the cutting blade so as to cut the work material faster and with less effort.

Abstract: An improved cutting tool for cutting asphalt composition shingles that are commonly utilized as a roofing material. In the preferred embodiment, the cutting tool has a handle section with a hand grippable handle, a head section with a head body attached at one end of the handle, a cutting blade pivotally attached to the head body and a vibrating mechanism disposed in the head body to vibrate the cutting blade so as to cut composition shingles faster and with less effort. The cutting blade can have one or more cutting edges for rearward or forward direction cutting. The vibrating mechanism can be disposed in the handle and can comprise an pneumatically or electrically powered motor that drives an eccentric weight. The head body and handle can be integral. One or more batteries disposed in the handle can provide electrical power to the electric motor.