Tapping - chamfering tool complex process can be divided into two phases: Tap Forward tapping. Tap Forward and axial feed, normal tapping, when chamfering workpiece face encounter and compress the spring after moving backwards along Taps chip flutes. Meanwhile, chamfering flank end face at work slip, no chamfer cutting. When the tap tap in place, chamfering is compressed to extreme positions.      Taps reverse return, chamfering chamfering. When the tap reversal returned by chamfering taps led chip flutes wall, and in the beginning of the spring tension chamfer cutting. When spring returned to the free state, the chamfer cutting stop, taps continue to return to the original position. Tapping - chamfering tool features complex      Centralized processes, high production efficiency. This composite tool can be completed within a process tapping, chamfering, does not need the tool change, so the higher productivity.      Simple structure, easy to manufacture. The composite reference standard tool can tap tap design, but the chip flutes should be used straight groove, long shank, and there are two open slots. Chamfering need specially designed.      Chamfer size can be adjusted. When the processing of different sized threaded hole, adjust the size of the chamfer is easy to implement: just loosen the adjusting screws, changing the axial position of the spring seat, that can change the size of the spring force.      A wide range of applications. Regardless of the tool in a single piece, small batch or mass production can be applied to motorized tapping, chamfering.