S5

I guess if you were looking for pure shock resistance the "S" series would be it, but jack-hammer bits just need to pulverize concrete without breaking or deforming. This means nothing for the duties of a cutting instrument. Yes this would be your unbreakable sword but...Oh heck -do what you want!

Click on the appropriate link below to go the the Crucible Service Center or Admiral Steels S5 page:

Crucible Service Center®: S5