screwdriver bit ; screw bit ; screwdriver head
... 梅花螺丝批 Large batter srewdriver 螺丝批头 SCREWDRIVER BIT 高档钟表螺丝批 precision screwdrives ...
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螺丝批头 screwdriver head
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电动螺丝刀批头 electric screwdriver bits
在打击活塞(3)上结合螺丝批头(4)。
A striking piston (3) is connected to a driver bit (4).
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通过压缩空气使上述螺丝批头 （4）与驱动齿轮（13）一起旋转，由此上述打入螺钉被打入到被打入 件中。
The compressed air rotates the driver bit (4) together with the drive gear (13) and the screw is screwed into the material to be struck.
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