A drill bit is a tool we often use, and it is also one of the tools we can often see and come into contact with. But sometimes the length of the drill bit is not enough, so there is an extra long wood drill bit . So what should we do if the drill bit breaks?

We can use a steel roller to tap the *** of the tap slowly with a small hammer. The tap is relatively brittle, and finally knocked out into slag, or even simpler, directly drill the threaded hole of the broken tap and re-enlarging and tapping (method Some savage, if the diameter of the tap is too small, it is not easy to use, the diameter is too large, and it is quite tiring to tap).

Or use an electric pulse to knock it off, EDM or wire cutting can be used, the hole can be reamed with a wire threaded sleeve (this method is simpler and more convenient, as for the coaxial, don’t consider it for the time being, unless your threaded hole is the same Axial degree directly affects the quality of the equipment).

Of course, there are other methods. For more details, please visit TCT circular saw blades .