The CK wrenches are made in various shapes and sizes and are used for gripping, fastening, turning, tightening and loosening things like pipes, pipe fittings, nuts and bolts. There are basically two major kinds of wrenches pipe wrenches used in plumbing for gripping round (cylindrical) things and general use wrenches used on nuts and bolts that have flat, parallel surfaces.

Chrome-vanadium steel body
Torx wrenches