Sakai Takayuki Uzushio White 2 Damascus Kamagata Usuba 195mm

The kamagata usuba (鎌型薄刃) is the Kansai type, with a pointed tip; the ordinary square usuba is the Kanto type, and both are single-bevel.

A knife maker's guide says the pointed tip can also do decorative cuts (飾り切り), angled slicing (そぎ切り) and fine work (細工), while in the Kanto style that work goes to a separate mukimono knife (むきもの細工包丁). Check the current range for square and kamagata usuba, including left-handed kamagata options when available.

Shirogami 1 (White 1) has a higher carbon content than Shirogami 2 (White 2), roughly 1.3% vs 1.1%.

White 2 (Shirogami #2) has about 1.1% carbon and, per Proterial, a hardening hardness of over 60 HRC; White 1 sits around 1.3% carbon. That 0.2% difference is the core spec gap. More carbon generally means you can push hardness higher and hold a keener edge, but it also makes the steel more brittle and less forgiving. White 2 trades a bit of that potential peak sharpness for slightly better toughness and ease of sharpening.

Shirogami 1 carries a certain prestige. Sukenari's Nobuo Hanaki once told me directly that they only use White 1 for their mizu-honyaki because it is the pure form of carbon steel, it carries that halo. Among traditional smiths, White 1 is still spoken of as the benchmark.

Sakai Takayuki (堺孝行) is a brand of Aoki Hamono Seisakusho (青木刃物製作所) in Sakai, Osaka, and the company's own page says so directly. The trademarks for 堺孝行 and 堺菊孝 were registered in 1964.

The company started in Tondabayashi, Osaka, in 1947 as a wholesaler of Sakai forged knives, moved its office to Sakai in 1963, and built its Sanpo factory in Sakai in 1977. So when you see the Sakai Takayuki name, that is Aoki Hamono's own line.

Sakai Takayuki knives are made by Aoki Hamono Seisakusho and its craftsmen in Sakai, Osaka. The company's own traditional-craftsman page profiles its named Sakai smiths.

Sakai works by division of labour: forging, grinding and sharpening are each done by a different specialist. Aoki Hamono's Sanpo factory, home to its smiths and sharpeners since 1978, added an automatic grinding machine for Japanese knives in 2015.

A honyaki is water quenched with sword-style hardening, so it usually runs about 1 to 2 HRC harder than a comparable knife that is not honyaki, though that varies by maker. The quench has a high failure rate, and that craft is a large part of the price.

A honyaki also needs more care. If your kitchen is busy, an everyday line such as the 33-layer or 45-layer VG10 Damascus, which share a VG10 core and differ mostly in looks, is the easier choice; if you want a harder edge and the craft itself, a honyaki can suit you.