When selecting the tool, to make the size of the tool with the workpiece surface dimensions to adapt. Selection tool diameter depends on the equipment specifications and dimensions of workpieces, tools also need to consider the required power should be in the power range of the machine.

Production, surrounding the outline of the plane parts processing, often using end mill; machining boss, when the recess, select high speed steel milling cutter; machining of rough surfaces or rough hole, choose corn milling inserts carbide inserts knife; for some three-dimensional surface and change the contour of the bevel processing, often using ball mills, annular cutter, conical cutters and disc cutter.

Face milling should use throwaway carbide end mill or mills, indexable face mills. General use of secondary pass, first pass is best to use an end mill roughing, continuous passes along the workpiece surface. Selecting the width of each pass and the cutter diameter, so finishing seams does not affect accuracy. Thus, large and uneven allowance, to choose smaller cutter diameter. When finished, the cutter diameter to choose bigger, better able to cover the entire width of the working plane. When surface requirements, you can choose to use the blade has a wiper effect. In practice, finishing flat, usually with fine-toothed indexable face mills can achieve the desired surface quality can be achieved even with milling and grinding. Clouds cutter the feed speed is greatly improved, thereby improving cutting efficiency. When fine-cut plane can be set from 6 to 8 teeth, a large diameter tool can even more than 10 teeth.