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1·The fixed structure of a keyless drill chuck lower housing has the characteristics of simple structure, convenient assembly, reliable connection and reduction of cost.

本实用新型具有结构简单、装配方便、连接可靠和降低成本的特点。

2·The shank is the end of the drill which fits into the socket, spindle, or chuck of the drill press.

柄是钻头末端和钻套、主轴或者钻床上的卡盘相配合。

3·A Taper Drill Bits are designed for use in a rotary hammer equipped with an a Taper type chuck.

型锥形钻头适用于装配了“A”型圆锥型夹头的电锤。

4·The best tool I have, since it will not fit on my lathe, is a hand drill with a 1/2 chuck.

最好的工具我有，因为它不适合我的车床，是一个手钻的1 / 2 “夹头。

5·Place the remaining end of the machine screw into the chuck of a drill press.

放入钻床夹头螺丝余下的1月底的机器。

6·The chuck can hold the detached drill bit and other part to avoid falling off and ensure safety.

本发明的夹头在拆卸钻头等被卡物件时能控制住钻头等被卡物件不会自动掉出，使用安全。

7·The use of the tapping chuck is particularly advantageous when working with the quick change system on drilling machines that allows to drill and tap in the same position without centring again.

另一优势的体现在这种快换的装置允许在同一个位置上钻孔或者是攻丝，不需要再做中心的调整。