Gesshin Uraku 150mm Stainless Clad HAP40 Wa-Petty Tennen Toishi (Natural Stones) grown without harmful chemicals to

grown without harmful chemicals to protect the environment and farmworkers

the do have an effect on edge refinement

When you hold these knives in your hand

and work well for small appetizers or similar

more heavy duty cooking like flipping a pancake or a piece of fish in a pan

Gesshin Uraku 150mm Stainless Clad HAP40 Wa-Petty Tennen Toishi (Natural Stones) grown without harmful chemicals toProduct Description Detailed Specs Measurements This series features a core steel of HAP40 conveniently clad in stainless steel. HAP40 is a semi stainless high speed powder steel. It is a relatively durable steel with excellent edge retention, and this version has a heat treatment in the ~64 HRC range. This knife will take a very acute edge and hold it for a very long time, but will be slightly more on the brittle side of things due to how thin it is.