Hatsukokoro Kaijin Blue #2 Gyuto 210mm

Overview

The Hatsukokoro Kaijin Stainless Clad Blue #2 Gyuto 210mm with a mono olivewood handle brings together workhorse performance, easy daily care, and a warm, organic aesthetic. Built around a Blue #2 carbon-steel core clad in soft stainless, this 210mm gyuto offers the bite and edge retention of traditional carbon steel with the lower-maintenance benefits of a stainless jacket—ideal if you want a serious upgrade from factory chef knives without babying a fully carbon blade.

The Kaijin blade runs slightly long at around 218mm of edge in the 210mm class, with a tall ~50mm heel and a spine that holds a comfortable ~2.2mm thickness from heel through the midsection. At roughly 165g, it lands in that sweet spot between laser and tank: enough spine and height for confident, board-contact chopping, but still thin and agile enough for precise slicing and detail work.

For this Tokushu Knife build, the blade is paired with a mono olivewood wa handle, giving you a lighter, slightly front-balanced feel compared to dense ebony, plus a striking grain pattern that looks at home in both professional and home kitchens. If you’ve been asking, “What’s a good stainless-clad Blue #2 gyuto for everyday cooking?”—this is exactly that lane.

Common Questions

Q: Is the Hatsukokoro Kaijin Blue #2 Gyuto 210mm a good choice for home cooks?

A: Yes. The 210mm length is comfortable even on smaller boards, while the tall heel and moderate weight give you confidence if you’re moving up from German-style knives. The stainless cladding keeps most of the blade face from rusting, so as long as you rinse, wipe dry, and don’t leave it soaking in the sink, it’s very manageable. At the same time, the Blue #2 core takes a very sharp edge and holds it well, so you spend less time sharpening and more time cooking.

Q: How reactive is Blue #2, and how should I care for this knife?

A: The exposed Blue #2 at the edge will patina over time—that’s totally normal and actually helps protect the steel. The stainless cladding keeps the upper blade much less reactive, so you really just need to focus on the edge: rinse, gently wipe, and dry thoroughly after cutting anything wet or acidic. For long-term storage, you can apply a light coat of food-safe oil such as tsubaki (camellia) oil to slow oxidation. Always avoid dishwashers and harsh scrubbers.

Q: What cutting techniques and ingredients does this gyuto excel at?

A: With its gently curved profile and moderate thickness, this Kaijin gyuto is happy with push-cutting, rocking, and glide-slicing. It shines on vegetables (onions, herbs, cabbage, root veg), proteins (trimmed beef, pork, chicken without bone), and general prep. Like any fine Japanese knife, it’s not meant for frozen foods, bones, or prying—use a heavier tool for that and let this blade handle the precision work.

Q: How should I maintain the edge over time?

A: Blue #2 is very sharpening-friendly. Day to day, a few light strokes on a quality leather strop—such as our Tokushu XL buffalo leather strop—will keep the edge crisp. When it eventually needs a full refresh, a proper whetstone progression or our in-house professional sharpening service will bring it back to screaming sharp. Pairing the knife with a soft, knife-friendly surface such as a Hasegawa Pro cutting board will noticeably extend edge life.

Specifications

Specs are approximate and will vary slightly from knife to knife, especially with natural olivewood handles.

• Core Steel: Blue #2 (Aogami #2) high-carbon steel
• Cladding Type: Soft stainless steel cladding (stainless clad)
• Blade Length: 218mm edge length (210mm class gyuto)
• Overall Length: 360mm
• Spine Thickness (Heel): 2.2mm
• Spine Thickness (Mid): 2.2mm
• Blade Height (Heel): 50mm
• Weight: Approx. 166g (may vary slightly with olivewood density)
• Handle Material: Mono olivewood, octagonal wa handle
• Hardness (HRC): ~62 HRC
• Blade Profile: Gyuto, double-bevel
• Brand / Line: Hatsukokoro Kaijin Stainless Clad Blue #2