The spiral composition of the chip flute of the twist drill has great influence on the rigidity and intensity of drill.
麻花钻切屑槽的螺旋形布局对钻头的刚度和强度有很大的影响。
Usually there are three methods can be used to machine the spiral flute of twist drill, such as cutting, torsion, grinding.
通常普通麻花钻的螺旋槽加工有三种方式：切削加工、扭制加工和磨削加工。
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