The Cuisine::pro® iD3® BLACK SAMURAI 3-Step Sharpener features a precision system with a diamond wheel to prep the blade, a tungsten steel blade to sharpen, and a ceramic wheel to polish. It also includes a dedicated sharpening slot for kitchen shears—ensuring every edge in your kitchen stays razor-sharp. 3-Step Sharpener features a precision system with a diamond wheel to prep the blade, a tungsten steel blade to sharpen, and a ceramic wheel to polish. It also includes a dedicated sharpening slot for kitchen shears—ensuring every edge in your kitchen stays razor-sharp.