任何机械实际上都要受到它所使用的工具的影响;因此,由于对工具考虑得不够,很多贵重的设备没有得到充分的利用。另外,有很多生产工程师也都承认,用高速钢麻花钻进行的深孔加工就是证明这种说法正确的一种金属切削加工。 Any machine is in fact influenced by the tools it uses; therefore, many of the expensive equipment are not fully utilized due to inadequate consideration of the tools. In addition, many production engineers have also admitted that the deep-hole machining with high-speed steel twist drills is a metal cutting process that justifies this claim.