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

    No.23 Hex Shank…

    Q: Can I make a hole in the siding board with our brand hex shank drill cutter? A: Yes. But,…
    FAQ
  • 2021.05.18

    No.20 Hex Shank…

    Q: Can I make a hole in the fiber-reinforced plastics (FRP) by using Hex Shank Iron Drill Bits and Hex…
    FAQ
  • 2021.05.18

    No.23 Hex Shank…

    Q: Can I make a hole in stainless steel by using our brand hex shank drill cutter? A: No, it…
    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.28 Hex Shank…

    Q: Please teach me to avoid breaking the Hex Shank tap risk. A: One point of advice is to keep…
    FAQ