Patent ID: 8556552

Claim:
A metal cutting head having a cutting head longitudinal axis (L) defining forward and rearward directions, the metal cutting head comprising: a cap portion comprising a plurality of head segments separated by at least first and second head flutes, each head segment comprising a rearwardly facing head base surface formed at a rearward end of the cap portion; and a fixation portion joined to the cap portion and extending in a rearward direction of the cutting head, the fixation portion comprising: a mounting stem connected to the cap portion and a plurality of circumferentially spaced apart protrusions on the mounting stem; wherein a plurality of spaced apart head fixation surfaces are formed on the fixation portion, each head fixation surface being parallel to the cutting head longitudinal axis and configured to apply a radially outward force when the metal cutting head is mounted; and wherein the circumferentially spaced apart protrusions are distinct from the spaced apart head fixation surfaces.