Drill

The tool (1) is assembled of a steel shaft and a hard metal cutting area at the tip (3) provided with two cutting edges (8). The upper end of the shaft (4, 6) is of a cylindrical shape to be clamped to the jaws of a power tool, the lower area is provided with two helical cutting grooves (9) exceedin...

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Bibliographic Details
Main Author BORSCHERT BERNHARD,KRENZER ULRICH,BUETTNER RAINER
Format Patent
LanguageEnglish
Published 26.07.2006
Subjects
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:The tool (1) is assembled of a steel shaft and a hard metal cutting area at the tip (3) provided with two cutting edges (8). The upper end of the shaft (4, 6) is of a cylindrical shape to be clamped to the jaws of a power tool, the lower area is provided with two helical cutting grooves (9) exceeding from the cutting edges (8). The outlets (15) of two coolant ducts (13) parallel arranged to the longitudinal axis of the tool (1) are positioned inside the cutting grooves (9) slightly above and pointing towards the cutting edges (8).
Bibliography:Application Number: CN200480017376