right hand thread tap右旋螺纹丝锥;右螺纹丝锥
hand plug tap手丝锥;手二道螺丝攻
hand bottoming tap手用平底丝锥
hand taper tap手用锥形丝锥
hand screw tap手用丝锥
hand bottom tap手搬三道螺丝攻
hand thread tap左旋螺纹丝锥
left-hand thread tap左旋螺纹丝锥
right-hand thread tap右螺纹丝锥