Tank & Steel – Leviathan 310
The Leviathan 310 is built as a statement performance knife for serious kitchen work.
Designed for high-volume prep and demanding ingredients, this long gyuto combines powerful stiffness at the heel with a highly refined, precise tip through an aggressive distal taper.
Forged from tough 80CrV2 high-carbon steel and heat treated to approximately 62 HRC at the edge, the blade offers exceptional cutting bite, edge stability and durability. The hand-ground geometry is optimized for efficient food separation and confident push or draw cutting across a wide range of products.
A subtle hand-finished kasumi surface with visible hamon gives the blade a raw, forged character while maintaining a clean and functional aesthetic. The stabilized curly birch hardwood handle provides a secure grip and visual depth, completing the knife’s brutal yet refined presence.
This piece reflects the Tank & Steel philosophy: uncompromising performance, honest high quality materials and purposeful design.
Specifications
• Steel: 80CrV2 high-carbon steel
Edge hardness: approx. 62 HRC
Construction: mono-steel with differential hardening (visible hamon)
Finish: hand-applied kasumi satin
Handle: stabilized Karelian Curly Birch
Cutting edge length: 310 mm
Overall length: approx. 450 mm
Spine thickness: 4 mm at heel → distal taper to approx. 0.7–0.8 mm near tip
Weight: 322 g
Grind: hand-ground performance geometry
Tank & Steel – Leviathan 310
The Leviathan 310 is built as a statement performance knife for serious kitchen work.
Designed for high-volume prep and demanding ingredients, this long gyuto combines powerful stiffness at the heel with a highly refined, precise tip through an aggressive distal taper.
Forged from tough 80CrV2 high-carbon steel and heat treated to approximately 62 HRC at the edge, the blade offers exceptional cutting bite, edge stability and durability. The hand-ground geometry is optimized for efficient food separation and confident push or draw cutting across a wide range of products.
A subtle hand-finished kasumi surface with visible hamon gives the blade a raw, forged character while maintaining a clean and functional aesthetic. The stabilized curly birch hardwood handle provides a secure grip and visual depth, completing the knife’s brutal yet refined presence.
This piece reflects the Tank & Steel philosophy: uncompromising performance, honest high quality materials and purposeful design.
Specifications
• Steel: 80CrV2 high-carbon steel
Edge hardness: approx. 62 HRC
Construction: mono-steel with differential hardening (visible hamon)
Finish: hand-applied kasumi satin
Handle: stabilized Karelian Curly Birch
Cutting edge length: 310 mm
Overall length: approx. 450 mm
Spine thickness: 4 mm at heel → distal taper to approx. 0.7–0.8 mm near tip
Weight: 322 g
Grind: hand-ground performance geometry
