Tips

FAQ

No.28 Hex Shank Taps

Q: How can I calculate recommended pre-hole size?
A: The format of recommended pre-hole is that size – thread pitch = recommended pre-hole size.

For example, the recommended size of pre-hole for M4 ×0.7 is 3.3 (=4-0.7).

OTHEROther【FAQ】articles

  • 2021.05.18

    Pliers

    Precautions for using our brand pliers. Please make sure the wire size, crimp terminal size and tool size, etc. If…
    Attention
  • 2021.05.18

    No.29 Hex Shank…

    Precautions for use our brand Hex Shank Dies Holder. There is different overseas inch size standard of round dies. Therefore,…
    Attention
  • 2021.05.18

    Our brand woodw…

    Q: Can I make a hole in plastic and polyvinyl chloride pipe (PVC) by using our brand woodworking auger bits?…
    FAQ
  • 2021.05.18

    No.27 SDS Shank…

    Q: Can I make a hole in stainless steel by using SDS Shank Iron Drill Bits? A: Yes, it is…
    FAQ
  • 2021.05.18

    No.20 Hex Shank…

    Q: Please kindly teach me one point tip to keep using the long period of Iron drill and our brand…
    FAQ