One or more roughing tools and a finishing tool are usually required for each job. Tools made of cold-rolled steel or stainless steel provide the best wear ratios.

• 要加工一个工件,通常需要一个或多个粗加工刀具和一个精加工刀具。由冷压钢或不锈钢制成的刀具耐磨效果最佳。