Our knives are forged from one piece of high-carbon German steel (type X50CrMoV15), so there’s no chance they’ll snap in two. They’re also precision heat-treated for long edge life to 56-58 RC. That’s “Rockwell,” the hardness test for steel. In layman’s terms, that’s a perfect hardness for long edge life.” The blade is taper ground with a full radius on the cutting edge. This creates the ideal rocking motion for smooth and efficient cuts. And since the blade’s not flat, you’ll avoid the extra strain caused by abrupt stops.  It’s our top-quality engineering that makes chopping, slicing and dicing an experience, not a chore.  This 5 piece set include 8 inch chef’s knife with hollow grounds, 7 inch Santoko with hollow grounds, 3 inch paring knife, 10 inch diamond sharpener, and a 13 slot wood block.