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.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.22-D Wooden …

    Q: Please kindly teach me how to use wooden dowel pins. A: After making a hole with our brand hex…
    FAQ
  • 2021.05.18

    No.28 Hex Shank…

    Q: What does the best cutting oil types for Hex Shank taps? A:There are many types of cutting oils. The…
    FAQ
  • 2021.05.18

    Our brand woodw…

    Q: Can I make a hole in the medium-density fiberboard (MDF material) by using our brand woodwork auger bit? A:…
    FAQ
  • 2021.05.18

    No.20 Hex Shank…

    Q: Is there one point tip to advise for making a big hole by using the iron drill bits, stainless…
    FAQ