Most bread knife handles are western - and finding a wa-handled Japanese bread knife at 270mm is genuinely rare. The Kohetsu 1K6 is one of the few. Tsukahara produces this knife in Seki City, Japan, using laser-cut 1K6 stainless steel at 60 HRC with a mono steel construction that keeps the blade thin and light throughout the serrated edge. The extended machi - the gap between the handle and blade - is a clever design solution: rather than cutting a new blade die for a longer profile, the team extended the machi to give the knife a longer overall feel and reach without changing the working cutting edge. It works exactly as intended.
At 230mm blade length and 40mm height with a 2mm spine the 1K6 is noticeably thin and light for a bread knife at this price - 5.7 oz is easy on the hand through high-volume bread service. The serrated edge cuts through crusty sourdough and delicate sandwich bread with equal control. The maple octagonal handle with maple ferrule gives it the wa-handle feel and balance that makes it worth seeking out for cooks who prefer Japanese handle geometry across their entire kit.
What Customers Are Saying: The one reviewer is a professional cook who impulse-bought it for the wa handle and found it outperformed her previous bread knife across restaurant service. She notes the blade has little flex, a sturdy feel, and stays comfortable through ten or more loaves without the hand fatigue she experienced with a heavier bread knife. She calls the performance extremely strong.
Care Instructions: 1K6 is a stainless steel - hand wash and dry after each use. Avoid the dishwasher. Serrated edges are difficult to resharpen at home - a round ceramic rod or specialist serration sharpener can touch up individual gullets when the edge dulls over time.
At 230mm blade length and 40mm height with a 2mm spine the 1K6 is noticeably thin and light for a bread knife at this price - 5.7 oz is easy on the hand through high-volume bread service. The serrated edge cuts through crusty sourdough and delicate sandwich bread with equal control. The maple octagonal handle with maple ferrule gives it the wa-handle feel and balance that makes it worth seeking out for cooks who prefer Japanese handle geometry across their entire kit.
What Customers Are Saying: The one reviewer is a professional cook who impulse-bought it for the wa handle and found it outperformed her previous bread knife across restaurant service. She notes the blade has little flex, a sturdy feel, and stays comfortable through ten or more loaves without the hand fatigue she experienced with a heavier bread knife. She calls the performance extremely strong.
Care Instructions: 1K6 is a stainless steel - hand wash and dry after each use. Avoid the dishwasher. Serrated edges are difficult to resharpen at home - a round ceramic rod or specialist serration sharpener can touch up individual gullets when the edge dulls over time.
- Brand: Kohetsu
- Maker: Tsukahara
- Location: Seki City, Japan
- Construction: Laser Cut, Mono Steel
- Steel: 1K6 Stainless Steel
- HRC: 60 +-
- Edge Grind: Even
- Handle: Maple Octagonal
- Ferrule: Maple
- Weight: 5.7 oz (162g)
- Blade Length: 230mm
- Total Length: 416mm
- Spine Thickness at Heel: 2mm
- Blade Height: 40mm
Reviews
1 review(s) WRITE A REVIEW (Reviews are subject to approval) Finally, a Wa handled bread knifePosted By: Nikita
40 people found this review helpful
recently impulse-bought this as I need wa handles on everything, however it performs extremely well as a bread knife, my old bread knife was the Tojiro ITK 270mm bread knife, and both knives now have been used for service in a very bust restaurant. the kohetsu knife holds up very well, with little flex in the blade and a general feeling of sturdiness. the blade itself is very thin, and nice and light so it doesn't strain my hand when slicing bread in large volumes, which was an issue that I had with the tojiro after ~10 loaves of bread.
40 people found this review helpful
recently impulse-bought this as I need wa handles on everything, however it performs extremely well as a bread knife, my old bread knife was the Tojiro ITK 270mm bread knife, and both knives now have been used for service in a very bust restaurant. the kohetsu knife holds up very well, with little flex in the blade and a general feeling of sturdiness. the blade itself is very thin, and nice and light so it doesn't strain my hand when slicing bread in large volumes, which was an issue that I had with the tojiro after ~10 loaves of bread.
