螺丝钻 meaning in Chinese

gimlet
helical auger
screwdriver

Then he heard that with his 2 , 000 gift it would still take 20 people digging for ten days using a hand auger
他知道付出了二千美元后，还需要二十人用螺丝钻，钻十天才能打开一口井。
What this means is the auger , ( the threaded part to which the backing plate attaches ) , is driven directly off the electric motor
它是一个螺丝钻（背面有图案装饰的）可直接切断电源。