- Composed of 3 materials, you can carefully sharpen various blades and scissor blades. (Adamantine: Scissor blade only, Step 1 Tungsten blade: Rough grind, Step 2 Diamond blade: Sharpen, Step 3 Ceramic blade: Sharpen the blade)- Ergonomic design: The non-slip bottom surface does not push even when force is applied, and the handle that can be held ..