hand auger 手螺钻 ; 手钻 ; [机] 手提螺钻

hand-operated auger 手摇螺钻机

Hand Auger bit 手用支罗钻

left-hand auger 左向旋转螺旋

right-hand auger 右向螺纹螺旋

Hand - held auger 土钻采样组

right-hand open-end auger 右旋输送螺旋

hand auger bits 杆状麻花钻

right hand auger 右向螺纹螺旋

gimlet hand auger 手钻