There are two specification ranges for double-ended wrench, the smaller end is suitable for nuts and bolts of 8mm to 13mm, and the larger end is suitable for nuts and bolts of 14-22mm. This greatly enhances the scope of application of the wrench and can meet your different needs.This universal torx wrench with compact design and allows you to carry it with you instead of carrying a set of different size torx wrenches for the same job this one spanner can do in a finer way.high quality chrome steel forging, the 8-22mm universal wrench is made of chrome vanadium steel with high hardness and super durability. Even after a long time of use, a strong wrench can still work well.The surface of the universal wrench tool is treated with overall heat treatment and polished plating, which has super high anti-corrosion and anti-rust properties. You can use it freely in any possible work and repair occasions.his 22mm wrench is suitable for mechanical maintenance industries, such as automobile maintenance, motorcycle maintenance, industrial maintenance, etcColour:silverMaterial:steelPackage Contents:1 x Tool wrenchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.