| YSS Symbol |
Features / Applications |
| Shirogami 1 |
Carbon steel with minimum impurities. Highest hardness / Highest quality tipped tool, Plane, Chisel, Razor |
| Shirogami 2 |
Carbon steel with minimum impurities. High hardness / High quality tipped tool, Chisel, Razor, Sickle, Ax, Graver |
| Shirogami 3 |
Carbon steel with minimum impurities. Middle hardness / Chisel, Sickle, Ax, Plane, Graver, Kitchen knife, Saw |
| Shirogami Nokozai |
Carbon steel with minimum impurities. / Highest quality Saw, Chisel |
| Kigami 2 |
Carbon steel with minimum impurities. High hardness / High quality tipped tool, Chisel, Razor, Sickle, Ax, Graver |
| Aogami 1 |
Alloy steel with W and Cr, to improve heat-treatment properties and wear resistance. / Highest quality Plane, other tipped tool, Razor, Kitchen knife |
| Aogami 2 |
Alloy steel with W and Cr, to improve heat-treatment properties and wear resistance. / High quality Plane, other tipped tool, Kitchen knife, Sickle |
| Aogami Super |
Alloy steel with W, Cr, V, to improve heat-treatment properties and wear resistance. / High quality Plane, other tipped tool, Kitchen knife, Sickle |
| KK |
Alloy steel with Cr, to improve heat-treatment properties and wear resistance. / Various Highest quality Kitchen knife, Razor blade |
| GIN(TM) 1 |
High Cr stainless steel with Mo, to improve corrosion resistance. / Various Kitchen knife, Scissors |
| GIN(TM) 3 |
Stainless steel which has hardness and sharpness comparable to carbon steel. / Various Kitchen knife, Scissors |
| GIN(TM) 5 |
Stainless steel for the razor blade replacement. / Various Kitchen knife, Saw, Razor blade |
| ATS(TM) 34 |
Popular Stainless blade steel. / Custom knife, High quality cutlery tool |
| ZDP(TM) 189 |
Stainless blade steel made by powder metallurgy process. / Custom knife, High quality cutlery tool |