A surgical rotational cutting tool comprising: a longitudinal axis; a shaft extending along the longitudinal axis and having a proximal end and a distal end; and a head located at the distal end of the shaft, the head comprising: a pointed distal tip; a bone contacting outer surface having a curved portion which curves inwards toward the longitudinal axis as it approaches the tip; and a plurality of flutes (12A, 12B, 12C, 12D) positioned circumferentially around the head, wherein each flute includes a proximal part and a distal part, wherein each distal part extends proximally from the pointed distal tip, wherein the edges of the distal parts of neighbouring pairs of said circumferentially positioned flutes meet to define a plurality of cutting edges which extend proximally from the pointed distal tip, wherein the proximal part of each flute extends proximally across the curved portion of the bone contacting outer surface, wherein the proximal parts of respective neighbouring pairs of flutes are separated from each other by a respective part of the curved portion of the bone contacting outer surface, wherein each respective part of the curved portion of the bone contacting outer surface is substantially V-shaped, and wherein the apex of each substantially V-shaped part meets a proximal end of the cutting edge that is defined by the said respective neighbouring pair of flutes. a longitudinal axis; a shaft extending along the longitudinal axis and having a proximal end and a distal end; and a head located at the distal end of the shaft, the head comprising: a pointed distal tip; a bone contacting outer surface having a curved portion which curves inwards toward the longitudinal axis as it approaches the tip; and a plurality of flutes (12A, 12B, 12C, 12D) positioned circumferentially around the head, wherein each flute includes a proximal part and a distal part, wherein each distal part extends proximally from the pointed distal tip, wherein the edges of the distal parts of neighbouring pairs of said circumferentially positioned flutes meet to define a plurality of cutting edges which extend proximally from the pointed distal tip, wherein the proximal part of each flute extends proximally across the curved portion of the bone contacting outer surface, wherein the proximal parts of respective neighbouring pairs of flutes are separated from each other by a respective part of the curved portion of the bone contacting outer surface, wherein each respective part of the curved portion of the bone contacting outer surface is substantially V-shaped, and wherein the apex of each substantially V-shaped part meets a proximal end of the cutting edge that is defined by the said respective neighbouring pair of flutes. a pointed distal tip; a bone contacting outer surface having a curved portion which curves inwards toward the longitudinal axis as it approaches the tip; and a plurality of flutes (12A, 12B, 12C, 12D) positioned circumferentially around the head, wherein each flute includes a proximal part and a distal part, wherein each distal part extends proximally from the pointed distal tip, wherein the edges of the distal parts of neighbouring pairs of said circumferentially positioned flutes meet to define a plurality of cutting edges which extend proximally from the pointed distal tip, wherein the proximal part of each flute extends proximally across the curved portion of the bone contacting outer surface, wherein the proximal parts of respective neighbouring pairs of flutes are separated from each other by a respective part of the curved portion of the bone contacting outer surface, wherein each respective part of the curved portion of the bone contacting outer surface is substantially V-shaped, and wherein the apex of each substantially V-shaped part meets a proximal end of the cutting edge that is defined by the said respective neighbouring pair of flutes.