主权项 |
1. A hand tool comprising:
a first part having a first pivotal portion which has a first handle and a first jaw on two ends thereof, the firsts pivotal portion having a first pivotal hole, a first insertion hole and a positioning hole, the positioning hole having a first positioning setting and a second positioning setting defined in one surface of the first pivotal hole; a second part having a second pivotal portion which has a second handle which is located corresponding to the first handle, the second pivotal portion having a first protrusion and a second insertion hole, the first protrusion being inserted into the first insertion hole of the first part; an assistance member having a third pivotal portion which has a second pivotal hole located corresponding to the first pivotal hole of the first part, the third pivotal portion having a second protrusion located corresponding to the second insertion hole of the second part, the third pivotal portion having a slot which is located corresponding to the positioning hole of the first part, the third pivotal portion having an adjustment head located corresponding to the first jaw of the first paw, the adjustment head having an adjustment screw connected thereto which is threadedly engaged with a second jaw which is moved relative to the first jaw by rotating the adjustment screw; a pivot extending through the first pivotal hole of the first part and the second pivotal hole of the assistance member, and a locking member having an engaging member on an outside thereof, the locking member located in the positioning hole of the first part, the engaging member located in the first positioning setting of the positioning hole. |