For Drilling:
For hand drills and bench drillsSuitable for workpieces with hardness less than 25 HRC such as carbon steel, thin iron plates, insulation plates, PVC boards, wood boards, etc.
[Note]
* Suitable for workpieces with hardness less than 25HRC
* Working with water cooling can effectively extend the service life of the bit.
* Recommended Drill Speed: 250-400 rpm