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1. 发明授权

US5845774A Screw gauge and indexed drill holder 失效
标题翻译：螺丝规和分度钻头架
公开(公告)号：US5845774A
公开(公告)日：1998-12-08
申请号：US829355
申请日：1997-03-31
申请人： Stephen E. Hausknecht
发明人： Stephen E. Hausknecht
IPC分类号： B25H3/00 , B65D85/28
CPC分类号： B25H3/003
摘要： A screw gauge and indexed drill holder for use with sheet metal or wood screws has a base with a series of progressively smaller gauging holes into which a user can insert a screw of unknown gauge, the gauge of which is determined by the smallest hole into which the screw will fit. A series of holes sized to accept and hold body (clearance) drills of specific sizes is coordinated with the gauging holes such that once the gauge of a screw is determined, the proper body drill is referenced and immediately available. Another set of holes sized to accept and hold pilot drills of specific sizes may also be present and coordinated with the gauging holes to indicate and provide the proper pilot drill for a screw of a particular gauge. Indicia may be provided which shows the screw gauge corresponding to a particular gauging hole, the screw body diameter, the corresponding body drill size, and the corresponding pilot drill size. A set of drills may be provided with the device.
摘要翻译：用于钣金或木螺钉的螺丝规和分度钻头支架具有一系列逐渐更小的测量孔的基座，用户可以在其中插入未知规格的螺钉，其规格由最小的孔确定，其中螺丝将适合。尺寸适于接受和保持特定尺寸的车身（间隙）钻头的一系列孔与测量孔协调，使得一旦确定了螺钉的规格，就参考了适当的身体钻孔并立即可用。还可以存在尺寸适于接受和保持特定尺寸的导向钻的另一组孔，并与测量孔协调以指示并提供用于特定规格的螺钉的适当的先导钻。可以提供标记，其示出了对应于特定测量孔的螺杆规格，螺杆体直径，相应的主体钻头尺寸和相应的导向钻头尺寸。该装置可以提供一组钻头。

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