When selecting the tool, to make the dimensions of the tool with the workpiece surface dimensions adapted. Production, plane parts around the contour machining, often using end mills; milling plane, to be elected carbide blade cutter; machining boss, when grooves for high speed steel end mills; rough surfaces or rough machining When the hole, you can select the corn milling inserts carbide inserts; for some three-dimensional contour of the bevel surface and variable processing, often using ball-cutter, circular cutter, conical cutters and disc cutter.

During freeform, because the ball head cutter cutting the ends of zero, therefore, to ensure precision cutting line spacing is generally able to get very close, so the ball used in surface finishing. The flat head tool surface quality and cutting efficiency are superior ball knife, so long as the guarantee but cut the premise, either roughing or finishing surfaces, should give priority to flat knife. In addition, the durability and precision cutting tools and tool prices great relationship, and we must note that in most cases, to choose a good tool despite an increase in the cost of the tool, but the resulting machining quality and efficiency You can greatly reduce the cost of the entire process.