An embodiment of a cutting tool positionable in a tubular for creating a cut in a tubular includes a body securable within the tubular and a cutting head having a nozzle for discharging a pressurized cutting fluid, wherein the cutting head is rotationally and axially moveable relative to the body. During a polishing process, an appropriate amount of a polishing agent is dropped onto the readout surface of the optical disk by a polishing agent supply pump to continuously supply the polishing agent to the interface between the optical disk and polishing pads, while a polishing water supply pump is operated to replenish the polishing agent with moisture evaporated by the polishing heat. An image recorded on a record medium is displayed in the state that an end portion of the power supply housing section and an end portion of the record medium secured to the cutout portion are placed on a surface where the lighting apparatus is placed. The invention finds use in a variety of drug discovery, clinical and therapeutic applications.