发明名称 |
Drill for making bores through wood, chipboard or plastics has guide peg at head end, entering pilot bore and cutting head on fluted shaft fitting into socket with screw thread |
摘要 |
<p>The cutting head (8) of the drill (1) has a central projecting peg (10) and forms the head end of a shaft (2) with two flutes (3,4) separating spiral surfaces of uniform external diameter (5,6). The tail end of the fluted shaft fits into a guide portion (20) of a socket (11) with a threaded bottom end (21). The extreme end of the shaft (14) has a male thread and screws into the threaded bottom of the socket.</p> |
申请公布号 |
DE20217077(U1) |
申请公布日期 |
2003.01.09 |
申请号 |
DE2002217077U |
申请日期 |
2002.11.06 |
申请人 |
TTS TOOLTECHNIC SYSTEMS AG & CO. KG |
发明人 |
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分类号 |
B23B31/00;B23B51/02;B27G15/00;(IPC1-7):B23B51/02 |
主分类号 |
B23B31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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