Patent ID: 8061396

Claim:
A tooth for a circular saw or a mower drum that is rotatable relative to an axis of rotation, said tooth being mountable on a holder, which is mountable on the saw or the mower drum, said tooth having four corners and four divergent sides extending from a mounting end to a cutting end, said cutting end having a first pair of opposed cutting edges and a second pair of opposed cutting edges, said first pair of opposed cutting edges being generally straight and said second pair of opposed cutting edges being generally concave, wherein, in use, said tooth is mountable on the holder in four different positions, a first position and a third position, wherein said opposed straight cutting edges are generally parallel and said opposed concave edges are generally perpendicular relative to the axis of rotation of the saw or mower drum, and a second position and a fourth position, wherein said tooth is rotated of 90° and said opposed straight cutting edges are generally perpendicular and said opposed concave edges are generally parallel relative to the axis of rotation of the saw or mower drum.