Pipe wrench has handle with hooked end which is connected to hooked jaw by plates on either side attached by bolts acting as pivots, opposing surfaces of hook and jaw being knurled
摘要
<p>The pipe wrench has a handle (10) with a hooked end (12). This is connected to a hooked jaw (11) by plates (13) on either side attached by bolts (14) which act as pivots. The opposing surfaces (15, 17) of the hook and jaw are knurled.</p>
