1, Fill some lubricating oil, use a sharp pin or chopper to slowly knock out the broken surface in the reverse direction, and reverse the iron sharpening from time to time (the most common method in the workshop, but it may not be suitable for threaded holes with too small apertures or broken taps that are too long, but you can try). Read More

Q: What tools need resharpening?A: Most of the tools can be resharpened, in the production design to consider the subsequent tool resharpening; of course, on this basis tool resharpening should also take into account the overall cost and benefit; for most of the relatively low price, resharpening costs are relatively high tool can be directly scrapped and give up resharpening, because its own added value is not high. Read More