| 摘要 |
PCT No. PCT/AU87/00053 Sec. 371 Date Oct. 20, 1987 Sec. 102(e) Date Oct. 20, 1987 PCT Filed Feb. 24, 1987 PCT Pub. No. WO87/04969 PCT Pub. Date Aug. 27, 1987.A cutting tool (10) of generally circular shape made by investment casting. Removable teeth (15) are secured in through-holes (14) in an annular support (13) and may be removed by removing locking nuts (18). The teeth (15) are angled transversely relative to the plane of the hub so that their respective cutting edges overlap to give a resultant cut wider than the annular support (14). The tool is particularly useful for grinding tree stumps or like and may be used on a stump grinder of the type described in U.S. Pat. No. 4,441,534. |
