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

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

Gespeichert in:
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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Beschreibung
Zusammenfassung: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 circular shaft tool or the grooved shaft tool. CONSTITUTION: A tool holder 13 is disposed on a jacket part 16 of a hollow spindle 15, an end part 17 of the hollow spindle 15 on the side of the tool holder 13 is engaged with a through opening 14, and a means to rotate and drive a grooved shaft of a grooved shaft tool which can be inserted into a second tool receiving part 12 is provided.