A cutting tool 10 includes: a shank part 14 that is substantially cylindrical in shape and provided at a base end portion 10b of the cutting tool 10; a cutting edge 18 located at a leading end portion 10t of the cutting tool 10; a chip discharge groove 30 formed from the cutting edge 18 toward the base end portion 10b of the cutting tool 10, for guiding and discharging chips generated during cutting; and a plurality of groove-like coolant flow paths 40 provided on a periphery of the cutting tool 10, for supplying coolant toward the leading end portion 10t. In a leading end view where the cutting tool 10 is viewed from the leading end portion 10t along the central axis 10A extending in a longitudinal direction of the cutting tool 10, a first coolant flow path 41 of the plurality of coolant flow paths 40 is located at an upper side relative to the cutting edge 18.

A body of a cutting tool may include a shank and a tip having spaced-apart, helical flutes. Each spaced-apart, helical flute may include a helical cutting edge extending from a tip bottom, adjacent a shank top, to a tip top. The tip may include chip gash paths. Each chip gash path may be recessed between two of the spaced-apart, helical flutes, and extend from the tip bottom to a tip top portion. The body may include helical coolant channels extending from entrances at a shank bottom, to within a shank interior, to within a tip interior, to tip coolant orifice exits. The coolant orifice exits may be disposed in the spaced-apart, helical flutes adjacent the chip gash paths or disposed in relief surfaces extending from the tip top downward to the chip gash paths. The coolant orifice exits may be spaced-apart from the tip top.