Patent ID: 7828026

Claim:
A rotary cutting machine comprising: a circular rotatable element; a plurality of tooth holders disposed on the circular rotatable element at spaced apart locations about its periphery; and at least one reversible cutting tooth removably fastened to each said tooth holder such that at least one cutting edge is disposed in a operable cutting position, each said cutting tooth having opposed first and second cutting faces respectively disposed on oppositely facing front and rear sides of the tooth, the first and second cutting faces being spaced apart along a central tooth axis extending between the first and second cutting faces on the front and rear sides, each of said first and second cutting faces at least partially defining at least four of the cutting edges thereon, and wherein said cutting tooth is reversible by 180 degrees about a transverse tooth axis such that the cutting tooth is mountable on the tooth holder in at least eight different positions, each of said positions providing a different selected one of said cutting edges in the operable cutting position.