发明名称 Hole cutter with axially- elongated aperture defining multiple fulcrums
摘要 <p>A hole cutter has a cylindrical blade body including a cutting edge and one or more axially-elongated apertures formed within a side wall of the blade body. The axially-elongated aperture is configured to receive a lever, such as a screwdriver, therethrough. Each axially- elongated aperture includes a first fulcrum axially spaced adjacent to the cutting edge, a second fulcrum axially spaced further away from the cutting edge than the first fulcrum, and optionally a third fulcrum axially spaced between the first and second fulcrums. A lever, such as a screwdriver, can be inserted into the aperture and placed against each of the fulcrums to lever slugs out of the interior of the blade body.</p>
申请公布号 AU2011205763(A1) 申请公布日期 2012.08.30
申请号 AU20110205763 申请日期 2011.01.13
申请人 IRWIN INDUSTRIAL TOOL COMPANY 发明人 NOVAK, JOSEPH THOMAS;GREEN, MATTHEW CHRISTOPHER
分类号 B23B51/05 主分类号 B23B51/05
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