Antiskid Self-locking Spanner

Antiskid self-locking spanner is a new type hardware tools with national patent,national patent No.200520014362.2.It has remedied the defects of traditional tools. While repairing machines and vehicles,there is little space and you can't adjust screw with hand.This spanner is stressed by three-point in its design and can grip workpiece automatically and firmly.Featured easy to operate,it is an ideal tools for maintenance of vehice and machinery.