| 摘要 |
A jigsaw apparatus includes a motor housing having a motor drive, a blade reciprocally powered by the motor drive, and a blade support arrangement that includes an arm that extends to the rear (or side) of the motor housing, the arm having a free end that supports a guide block. A base positioned at the lower end of the motor housing has sockets or like receptacles that receive the arm at selected orientations. The blade is specially configured, having an opening at its lower end for receiving a fastener and a slider block. The slider block travels in a vertical bore of the guide block.
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