| 摘要 |
A grinder tooth for use with a rotatable breaker ring part of a grinder, the breaker ring has a breaker head protruding radially from the ring outer peripheral surface for carrying the grinder tooth. The grinder tooth includes a blade holder, a shank extending from the blade holder and a blade releasably attached to the blade holder. The blade defines at least two grinding edges. The blade and holder are configured and sized so that the blade and holder peripheral surfaces are substantially in register with each other when the blade is attached to the holder. The blade and the holder are also configured and sized so that either one of the at least two grinding edges may be positioned radially outwardly by rotating the grinder tooth about the shank longitudinal axis allowing either one of the at least two grinding edges to be selectively used for grinding.
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