| 摘要 |
A portable, hydraulically powered rescue tool has a cutter head (30, 230, 530), a hydraulic motor (25, 225, 525), a battery-powered hydraulic fluid pump (26, 226, 526), and controls (34, 234, 534) necessary f or operation of the tool. Blades (124, 150, 152, 324, 350, 352, 624, 650, 652) are shaped so that, when the tool is in use, the blades (124, 150, 152, 324, 350, 352, 624, 650, 652) take bites of material out of the object to be cut.
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