CHUCK ADAPTER SLEEVE FOR A TWIST DRILL

A double-ended drill bit (50) having opposed cutting ends (52, 54) of different structural configurations is provided in combination with a sleeve or holder (10) to be received within a drill chuck. The sleeve is provided with a cylindrical body (14) having a top end with a pair of helically-shaped...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	BYRLEY, DAVID, H, PHILLIPS, GREGORY, A, WIKER, JUERGEN, LOCKHART, ZANE, JR, NEWHOUSE, DEBBIE, ANN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BORING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TURNING
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