pin wrench

1. Overtightening will cause pinching bulb pin, bulb will stock in socket and void warranty of socket. A very tiny allen wrench will be included.
   旋紧螺丝时须非常的小心，过度旋紧螺丝会造成产品损坏，我们不对这种损坏做产品保固。
2. In view of taking down the hinge pin of hydraulic support, developed the pneumatic puller on the basis of usual hammer puller, pneumatic wrench and screw pair drive.
   针对液压支架铰接销拆卸难的问题，在普通锤式助拔器的基础上，利用风动扳手和螺旋副传动，研制了风动助拔器。

noun

1. a wrench that has a projecting pin that fits into a socket on the object to be turned