Building a knife starts with making the knife blank. First, a piece of steel with the properties suited to the purpose of the knife is selected. This piece is then forged to form the blade and the tang roughly fitting the form of the design. The form is further refined by filing and grinding. When the blank is finished and all the holes for the handle are drilled, the blade is heattreated by annealing, hardening and tempering the steel so it can withstand forces and hold an edge. The next step is to assemble the knife blank and the handle scales. The handle can than be shaped to fit. As the last step, the blade is sharpened to form a proper cutting edge.