How to distinguish between good and bad wrenches?
A wrench is a common tool for mounting and dismounting. A manually operated tool for screwing bolts, screws, nuts, and other threads to secure the opening or sleeve of a bolt or nut. An opening or a sleeve hole of a clamping bolt or a nut is usually arranged at one end or both ends of the handle part, and the screw bolt or nut can be screwed when an external force is applied to the handle in the direction of rotation of the thread.
Key points to distinguish a wrench from good or bad1. shall not rust, burrs, cracks and spots, etc.;2., the mouth symmetry, laser lettering should be clear;3. hardness to reach the required standard, and to accurately position4., flexible wrench operation of the turbine to be flexible, pin can not be loose.
The first is material, is ordinary steel or vanadium steel screw.Aperture accuracy dimension.Electroplate。Length.If you're talking about a torque wrench, it's a big difference.Specifically, you think about what wrench to buy, how much money wrench, I recommend the brand.
