Abstract: The present invention provides a retrofitted attachment to an existing bone sagittal saw or drill to cool bone during the cutting and/or drilling phase of surgery. The irrigation apparatus disperses sterile fluid from an attached intravenous bag via length of slim tubing. The tubing is attached to the saw or drill and held in place by C-shaped clips. Gravity simply forces a constant flow of sterile fluid from the suspended bag to the saw blade or drill to cool the bone. Additionally, an angled jet tip directs the flow of the coolant towards the saw blade for the most beneficial effects. Finally, a thumb operated button is located at the distal end of the device to control the flow of liquid.