My beater is a Custom 4" FB. Steel is L6 with G10 handles. Its 3/16" thick and is a drop point. Its tough as nails, has been used to pry skids apart, pry a broken sway bar off a car, pry and hold a lower control arm in place while a friend welded it. It has been through hell and its still my most trusted knife. I honestly do not think I could destroy this knife without tools. Once i put it across a hole in the ground with the tip on one side and the end of the handle on the other and jumped on it to see if it would flex at all or break and it didnt.