2. It will easily extract damaged bolts, nuts, and screws even if they are stripped,rusted, or frozen.
3. The unique plum-shaped internal thread design provides excellent torque and can be used to rotate fasteners with deep bolts. The internal uneven concave wall helps to hold the stubborn nut,the more you turn, the tighter the grip, the easier it will not break or slip off.
4. The heavy-duty blow-molded case for organized storage and easy carry.