An apparatus for cutting a portion of an immobilization cast to facilitate removal of the cast from a body part of a patient may comprise a handle structure for being held by the hand of a user, a cutting device extending from the handle for cutting the cast material, with the cutting device including a blade and a blade movement device configured to cause ultrasonic movement of the blade, and a shielding structure configured for at least partially positioning between the cast and a part of the patient's body part such that a portion of the shield extends between the blade and the body part to shield the body part from the blade.

A vinyl wrap cutter makes a clean cut in a sheet of material (e.g., vinyl, thermoplastic polyurethane, polyvinyl chloride or other material) that is adhered to a vehicle (e.g., car, motorcycle, truck, minivan, boat, bicycle, wagon). A guide post of the vinyl wrap cutter follows a feature or contour of the vehicle and spaces the cut a fixed distance from the feature/contour. For example, following the contour of the vehicle's hood, roof, trunk, doors, etc. The vinyl wrap cutter has at least one blade held within a body and a guide post with fastener that holds the body together. The guide post traverses the feature/contour of the vehicle to provide a cut that matches the feature/contour of the vehicle.

A working machine may include: an output shaft; a rotary blade attached to the output shaft; a prime mover configured to rotate the output shaft; a housing that houses the prime mover and rotatably supports the output shaft; and a blade cover attached to the housing. The sidewall of the blade cover may include a first stopper and a second stopper. The facing portion of the housing may include a first stopper receiver and a second stopper receiver. When the blade cover is pivoted in a first pivot direction of the blade cover, the first stopper may contact the first stopper receiver. When the blade cover is further pivoted in the first pivot direction from a state where the first stopper is in contact with the first stopper receiver, the second stopper may contact the second stopper receiver.

A working machine may include: an output shaft; a rotary blade attached to the output shaft; a prime mover configured to rotate the output shaft; a housing that houses the prime mover and rotatably supports the output shaft; and a blade cover attached to the housing. The sidewall of the blade cover may include a first stopper and a second stopper. The facing portion of the housing may include a first stopper receiver and a second stopper receiver. When the blade cover is pivoted in a first pivot direction of the blade cover, the first stopper may contact the first stopper receiver. When the blade cover is further pivoted in the first pivot direction from a state where the first stopper is in contact with the first stopper receiver, the second stopper may contact the second stopper receiver.

An ice axe cover comprises a head section configured to cover at least a portion of a head of an ice axe. The head section comprises an adze slot for receiving an adze of the ice axe and a pick sleeve for receiving a pick of the ice axe. In some embodiments, at least a cutting edge of the adze is exposed outside the adze slot, and at least a tip of the pick is exposed outside the pick sleeve. The ice axe cover can also comprise a shaft section that covers at least some of a shaft of the ice axe. The shaft section can extend from a shaft junction between the pick sleeve and adze slot of the head section. The ice axe cover can comprise a thermally insulative material, such as neoprene, a grip component, and a reflective component.

An ice axe cover comprises a head section configured to cover at least a portion of a head of an ice axe. The head section comprises an adze slot for receiving an adze of the ice axe and a pick sleeve for receiving a pick of the ice axe. In some embodiments, at least a cutting edge of the adze is exposed outside the adze slot, and at least a tip of the pick is exposed outside the pick sleeve. The ice axe cover can also comprise a shaft section that covers at least some of a shaft of the ice axe. The shaft section can extend from a shaft junction between the pick sleeve and adze slot of the head section. The ice axe cover can comprise a thermally insulative material, such as neoprene, a grip component, and a reflective component.