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).

Back to the List

OTHEROther【FAQ】articles

  •

    2021.05.18

    No.24 Hex Shank…

    Q: Please tell me one point tip for keep using the long period of concrete drill bits and porcelain tile…
    FAQ

  • 2021.05.18

    No.22 Hex Shank…

    Q: Why does the hole size of making by our hex shank dowel bits make small to compare of actual…
    FAQ

  • 2021.05.18

    Our brand woodw…

    Q: Can I make a hole in rubber by using our brand woodworking auger bits? A: No, it is not…
    FAQ

  • 2021.05.18

    No.25 SDS Shank…

    Q: Can SDS shank wood auger bits use for SDS max? A: No. Our brand SDS shank auger bits only…
    FAQ

  • 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