一，使用方法：
1、 Usage:
1、 用扳手内套筒完全插进螺栓尾部梅花头部分，同时向前推动扳手，内套筒后退，使外套筒完全套住螺母，若不能完全套住螺母请左右转动扳手并向前用力。
1. Insert the inner sleeve of the wrench fully into the box head at the end of the bolt, push the wrench forward at the same time, and the inner sleeve moves backward to make the outer sleeve completely cover the nut. If the nut cannot be completely covered, turn the wrench left and right and force forward.
2、 扣动扳手开关，使其旋转。
2. Turn the wrench switch to rotate it.
3、 拧断梅花头，紧固结束，同时扣动板机弹出梅花头。
3. Screw off the quincunx head, tighten it, and pull the trigger to eject the quincunx head.
二，套筒更换：
2、 Sleeve replacement:
1、 把扳手护罩拧下来，把外套筒、内套筒及内套筒弹簧取出。
1. Unscrew the wrench cover, and take out the outer sleeve, inner sleeve and inner sleeve spring.
2、 先装上内套筒的弹簧及所换内套筒，然后装上相应的外套筒，前壳体凸起部与外套筒凹下部相连接，并把护罩拧上
2. First install the spring of the inner sleeve and the replaced inner sleeve, and then install the corresponding outer sleeve. The convex part of the front housing is connected with the concave part of the outer sleeve, and screw on the shield
