The present disclosure envisages a portable assembly for conducting on-site dental procedures without the need of a dental chair. The assembly comprises a portable hand-held dental drill for performing the dental procedures, and a portable coolant reservoir that is in fluid communication with the portable hand-held drill via a first conduit. A portable compressor is in fluid communication with the portable hand-held drill via a second conduit, wherein the portable hand-held drill is configured to spray a mixture of a coolant and air on the location at which the dental procedure is performed to provide cooling, improved visibility, and cleansing thereof. Fig.1A
