Flexible and extendable drill bit assembly
作者： Richard M. Davidian , Christopher L. White
DOI:
关键词:
摘要: A flexible, extendable extension assembly used to create extended length holes and through inaccessible areas in walls framing. The including a flexible rod (11) having first second ends (13, 16); holding means (14) secured the end (13) of for releasably tool bit (18) rotation with (11).
google.com.mx 参考文章(30)
David J. Carpinetti, Quick change drill extender system ,(1997)
J. Richard Martindell, Handle adapter and chuck apparatus for power bits ,(1986)
Edward L. Quiring, Chuck having one-step lock and release ,(1993)
Robert DeLong, James Lafferty, Collet and tool assembly ,(1990)
Robert B. Wrobel, Hand drill extender kit ,(1999)
John G Broussard, Juble D Griffis, Drill bit guide ,(1960)
Ralph L Mcnutt, Curved extension drill ,(1957)
Arthur P Beam, Flexible extension attachment for electric drills ,(1954)
Todd Coons, Edward Pietraszkiewicz, Hole-drilling guide and method ,(2004)
James L. Wienhold, Chuck assembly for tool bits ,(1990)