HAND-HELD DRILL AND TOOL HOLDER PARTICULARLY FOR HAMMER DRILL AND HAND-HELD DRILL

PURPOSE: To improve circular rotation characteristics in rotation drilling by a circular shaft drill and impact drilling provided with a grooved shaft tool, and productivity of a combined tool holder in a hand drill provided with the combined tool holder for alternately tightening and releasing the...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	OTSUTOO BAUMAN, RORUFU MIYURAA, BUIRUBERUTO RAIBETANTSU, HAINTSU NOIBERUTO
Format:	Patent
Sprache:	eng
Schlagworte:	BORING HAND TOOLS MACHINE TOOLS MANIPULATORS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING TURNING
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