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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0236992 (1994-05-02) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 50 인용 특허 : 0 |
An improved two-ended reversible drill/driver tool for use with power drills. The tool having a hollow cylindrical socket that at one end has a drive shank for insertion into a chuck of a powered drill, and, at the opposite end, has a polygonally shaped opening therein for receiving a correspondingl
A reversible drill/driver tool for use with a powered drill having a chuck comprising: a two-ended reversible tool assembly having an elongate holder body means for holding at one end thereof a removable bit for drilling a pilot hole and countersink, and for holding at the other end thereof a remova
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