MONKEY SPANNER HAVING A LOCK DEVICE WHICH CAN PREVENT DAMAGE TO BOLT AND A NUT BY PREVENTING THE CHANGE OF OPENING INTERVAL OF A MONKEY SPANNER

摘要

PURPOSE: A monkey spanner having a lock device is provided to prevent the side to side movement of a spanner by a locking device.;CONSTITUTION: A monkey spanner comprises a fixed axis, a flowing axis, ridges and a retractor. The ridge and retractor are formed in the fixed axis and the flowing axis. The ridge is formed in several millimeters. If the retractor is once submerged, the millimeter is not signal-changed. The interval of a spanner does not need to be repetitively corrected.;COPYRIGHT KIPO 2011