Because the tool bit and the tool bar are is fixed together by the tapering shape positioning device, the tool bit can be dismounted from the tool bar to make a multi-purpose tool bar.
由于刀头和刀杆是用锥式定位装置固定在一起的，所以刀头可以从刀杆上拆卸下来，使得一刀杆多用。
Because the tool bit and the tool bar are is fixed together by the tapering shape positioning device, the tool bit can be dismounted from the tool bar to make a multi-purpose tool bar.
由于刀头和刀杆是用锥式定位装置固定在一起的，所以刀头可以从刀杆上拆卸下来，使得一刀杆多用。
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