Power tool accessories for cutting tubular members

A power tool accessory for cutting tubular members comprising:

• a housing including a generally U-shaped housing opening;
• an input shaft at least partially received in the housing, the input shaft configured to be coupled to a rotary power tool to be driven in rotation by the power tool;
• a transmission received in the housing and drivable by the input shaft, the transmission including an output member with a first plurality of teeth;
• a plurality of cutting heads interchangeably and rotatably coupleable to the housing, each cutting head including a generally U-shaped central opening with a different interior size, at least one cutting blade that protrudes into the central opening, and a second plurality of teeth configured to be drivingly engaged by the first plurality of teeth;
• wherein each cutting head is configured to receive a tubular member of different size in the central opening with the cutting blade engaging the tubular member so that the cutting blade cuts the tubular member as the cutting head rotates about the tubular member in response to rotation of the input shaft, and
• wherein each cutting head is receivable in the housing with the housing configured to cover substantially an entirety of a top face of each cutting head when each cutting head is received in the housing and each generally U-shaped central opening is aligned with the generally U-shaped housing opening.

A power tool accessory for cutting tubular members comprising:

• a housing;
• an input shaft at least partially received in a rear end portion of the housing, the input shaft configured to be coupled to a rotary power tool to be driven in rotation by the power tool;
• a transmission received in the housing, the transmission including an input gear rotatably drivable by the input shaft, at least one intermediate gear rotatably drivable by the input gear, and at least one output gear rotatably drivable by at least one of the at least one intermediate gear;
• a C-shaped cutting head removably and rotatably coupleable to a front end portion of the housing, the cutting head having a central opening and at least one cutting blade that protrudes into the central opening, the C-shaped cutting head configured to be rotatably drivable by the at least one output gear;
• and
• a cover coupled to the housing and moveable between a first position in which the cutting head is removable from the housing and a second position in which the cutting head is retained in the housing and is rotatable relative to the cover and the housing,
• wherein the cutting head is configured to receive a tubular member in the central opening with the cutting blade engaging the tubular member so that the cutting blade cuts the tubular member as the cutting head rotates about the tubular member in response to rotation of the input shaft,
• wherein the cutting head includes a grip surface on its outer periphery so that the cutting head is configured to be used as a manual operated cutter of tubular members when the cutting head is removed from the housing, and
• wherein the cutting head has a generally U-shaped central opening, the cover has a generally U-shaped cover opening, and the cover is configured to cover substantially an entirety of a top face of the cutting head when the generally U-shaped central opening of the cutting head is aligned with the generally U-shaped cover opening.