Hatsukokoro Sumi Blue 2 Petty 80mm (Blade Only)
SPECIFICATIONS
Knife Style: Petty
Steel Type: Carbon Steel
Blade Material: Aogami Blue #2
Blade Finish: Kurouchi
Blade Hardness: 62HRC (+/-1)
Bevel: Double
Handle: None ➛ Choose yours
Blade Length: 80mm
Heel Height: 26mm
Spine Thickness: 1.60mm (Tapered)
Weight: ~24g
At first glance, it’s that rugged, unpolished kurouchi finish that grabs your attention—raw, forged, and totally unapologetic. Look a little closer, though, and you’ll see the finesse hiding under the surface: a clean, expressive spine taper that starts thick and confident near the handle, then thins out smoothly toward a nimble tip. This geometry brings a surprising amount of balance and control to a blade that still feels earthy and tough.
This is the Hatsukokoro Blue #2 series—a lineup that doesn’t just reference traditional Japanese bladesmithing, but genuinely lives it. Each knife is hand-forged in Japan by craftsmen keeping the heritage of regions like Tosa and Sakai alive. With a hardness of around 62 HRC, these blades offer that crisp, razor-friendly sharpness you want from Aogami, while still being easy to touch up when needed.
One of the charms of this series is its individuality—small forge marks, subtle asymmetries, tiny differences from piece to piece. These aren’t flaws; they’re fingerprints. Proof that a human shaped this blade, not a production line.
Kakushin can handle the blade-to-handle assembly for you at our shop. If you're new to the custom knife world and want to confirm the fit and sizing of a handle with a specific blade, feel free to reach out!
Original: $45.81
-65%$45.81
$16.03Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
SPECIFICATIONS
Knife Style: Petty
Steel Type: Carbon Steel
Blade Material: Aogami Blue #2
Blade Finish: Kurouchi
Blade Hardness: 62HRC (+/-1)
Bevel: Double
Handle: None ➛ Choose yours
Blade Length: 80mm
Heel Height: 26mm
Spine Thickness: 1.60mm (Tapered)
Weight: ~24g
At first glance, it’s that rugged, unpolished kurouchi finish that grabs your attention—raw, forged, and totally unapologetic. Look a little closer, though, and you’ll see the finesse hiding under the surface: a clean, expressive spine taper that starts thick and confident near the handle, then thins out smoothly toward a nimble tip. This geometry brings a surprising amount of balance and control to a blade that still feels earthy and tough.
This is the Hatsukokoro Blue #2 series—a lineup that doesn’t just reference traditional Japanese bladesmithing, but genuinely lives it. Each knife is hand-forged in Japan by craftsmen keeping the heritage of regions like Tosa and Sakai alive. With a hardness of around 62 HRC, these blades offer that crisp, razor-friendly sharpness you want from Aogami, while still being easy to touch up when needed.
One of the charms of this series is its individuality—small forge marks, subtle asymmetries, tiny differences from piece to piece. These aren’t flaws; they’re fingerprints. Proof that a human shaped this blade, not a production line.
Kakushin can handle the blade-to-handle assembly for you at our shop. If you're new to the custom knife world and want to confirm the fit and sizing of a handle with a specific blade, feel free to reach out!
