Masamoto Shiro-ko Hongasumi

正本 本霞 • 玉白鋼

The Masamoto Shiro-ko Hongasumi knives are forged from a combination of white carbon steel #2 and soft iron steel, and handled with magnolia wood and a water buffalo bolster. White steel’s pure carbon content allows for the sharpest cutting edge. The main difference between the kasumi and hongasumi line is found in the crafting process. More steps, higher level craftsman, and greater attention to detail are involved when crafting hongasumi knives, and they therefore are more refined than kasumi knives.


  • HRc: 62-63 
  • Bevel: Single Edged 
  • Steel Type: White Steel #2 (Moisture and acidity will cause discoloration or rust)

For Left-Handed Customer

  • Left-handed blades must be special ordered from Japan, and will cost 50% more than the right-handed blades. Due to how each traditional Japanese knife is handmade by right handed craftsmen, it will take 4 to 6 weeks to forge and deliver.

Masamoto Shiro-ko Hongasumi Yanagi
Item #: HMA-SHYA   Size:
Style: Sashimi Slicer
Price per item$329.50 – $710.20
Masamoto Shiro-ko Hongasumi Takobiki
Item #: HMA-SHTA   Size:
Style: Sashimi Slicer
Price per item$345.00 – $507.00
Masamoto Shiro-ko Hongasumi Deba
Item #: HMA-SHDE   Size:
Style: Fish & Butcher Knife
Price per item$285.00 – $554.00
Masamoto Shiro-ko Hongasumi Kamagata Usuba
Item #: HMA-SHKU   Size:
Style: Vegetable Slicer
Price per item$332.50 – $517.50
Masamoto Shiro-ko Hongasumi Usuba
Item #: HMA-SHUS   Size:
Style: Vegetable Slicer
Price per item$332.50 – $517.50
Masamoto Shiro-ko Hongasumi Sobakiri
Item #: HMA-CSO   Size: 11.7" (30cm)
Price: $1,050.00