As a standard feature on the Wright open-end of combination wrenches, precision placed protrusions are custom engineered for each wrench size to keep it seated on the fastener, increase torque and reduce slippage.
First time buying Wright tools, i have to say, they are strong and trust me i use these suckers daily and i have purposely pushed them
Although these wrenches are a bit wider and shorter, they do keep up with my Snap-On wrenches and for a very good price. Very strong metals are used i can tell. Very annoying when the open end of the wrench give in and open up,(Like craftsman, matco wrenches, and cornwell). causing you to round the nut off. But so far i haven't had that problem. Made in the USA is a big plus plus! Love the mat they come with. I will be considering Wright Tools for my next purchase! Good strong stuff