Reasons for gas tap breakage

2025-09-01 15:40:57

The quality problems of Cutting tap themselves are also one of the reasons for the breakage of Cutting tap during the tapping process. When processing blind hole threads, if the gas tap is about to contact the bottom of the hole and the operator is not aware of it and continues to feed at the tapping speed that has not reached the bottom of the hole, the Reverse Thread tap will inevitably break.

During the tapping process, due to the uneven force exerted by the operator's hands, the direction of force changed and the gas tap broke. This situation often occurs in the machining of threads with smaller diameters.

When processing blind hole threads, if some chips are not discharged in time and fill the bottom of the hole, if the operator forcibly continues to tap, the gas tap will inevitably break. The bottom hole diameter does not match the gas tap.

For example, when processing M5 × 0.5 threads, a necessary 4.5mm drill bit should have been used to drill the bottom hole. If a Ø 4.2mm drill bit suitable for M5 is mistakenly used for processing, due to the smaller hole diameter and mismatch with Cutting tap, the torque will inevitably increase.

If the operator continues to forcefully tap without realizing the use of the wrong drill bit at this time, the phenomenon of gas tap breakage will inevitably occur.