Quick-changing brazed drill
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United States of America Patent
Stats
-
Nov 2, 2021
Grant Date -
Jun 25, 2020
app pub date -
Apr 18, 2019
filing date -
Dec 19, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A quick-changing brazed drill includes a drill body and a quick-changing joint. The drill body is connected to the quick-changing joint detachably, and a vent hole is provided at a connection point between the drill body and the quick-changing joint. The drill body has a cylindrical structure, an interior of a front end of the drill body is hollow, and an outer side of the front end of the drill body is provided with 2-6 grooves. The quick-changing joint includes a transition block and a rear cover; a rear end of the transition block is connected to the rear cover by an external thread; a snap-fit area is provided between the transition block and the rear cover; a middle portion of the transition block is provided with a first threaded hole and is connected to a rear end of the drill body.
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