Drilling tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 12, 2000
Grant Date -
N/A
app pub date -
Sep 14, 1998
filing date -
Sep 13, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drilling tool, in particular for rotary percussion drilling preferably of rock, is proposed, with a drill body preferably equipped with cutting tips toward the drilling side and with an axially arranged bore for receiving an exchangeable center drill. In order to carry out easy mounting and demounting of the center drill, the drilling tool is designed in two parts, the center drill being capable of being introduced into the drilling tool on the clamping side.
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