ZWILLING TWIN 1731 4-inch, Paring knife

ZWILLING TWIN 1731 4-inch Paring Knife is rated 4.9 out of 5 by 15.
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TWIN 1731 is designed by the internationally acclaimed designer Matteo Thun. Years of work culminated in the ZWILLING wedge geometry that improves comfort and optimizes cutting technique. This innovative curved bolster is meant to be an extension of the hand, supporting the professional grip with thumb and index finger on the bladeDeveloped for bearings in aerospace engineering, the highperformance Cronidur 30 steel boasts impressive toughness and corrosion resistance that is 100 times higher than standard steel. Combined with ZWILLING's signature ice-hardening technique, this FRIODUR blade is exceptionally sharp and durable.Each knife is precision-forged with ZWILLING's SIGMAFORGE process, resulting in a remarkably sturdy, balanced and flexible blade. With an incredibly sharp, laser-controlled edge, the knives are honed and hand-finished by the most skilled artisans.

  • SIGMAFORGE knife is forged from a single piece of solid Cronidur 30 high-performance NO STAINsteel
  • Ice-hardened FRIODUR blade starts sharper, stays sharper longer, and has superior resilience
  • Precision-honed blade and laser-controlled edge ensures ideal cutting angle for sharpness and durability
  • Curved bolster encourages cutting with improved precision, safety and comfort
  • Full-edge utility: whole length of the blade can be used for cutting and chopping and the edge can be sharpened from bolster to tip
  • Untreated, oiled Ebony wood handle is bonded to the bolster and tang with seamless accuracy
  • 60 Rockwell Hardness = exceptional edge retention, Edge angle 12.5 degrees per side
  • Manufactured in Germany


  • Item no. 31860-103
  • Color: brown
  • Country of origin: Germany
  • Substance: cronidur 30
  • Type of handle: concealed tang
  • Type of edge: fine edge
  • Edge finishing: V-edge
  • Manufacturing method: forged
  • Blade hardness (HRC): 58-60 HRC
  • Colour handle: brown
  • Substance handle: ebony
  • Net weight: 0.20 lbs
  • Length of product: 9.06 in
  • Width of product: 0.59 in
  • Height of product: 1.18 in
  • Blade length: 3.94 in
  • Handle length: 4.61 in
  • Handle width: 0.59 in
  • Blade width: 0.04 in
  • Blade thickness: 0.04 in
ZWILLING TWIN 1731 4-inch, Paring knife
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ZWILLING TWIN 1731 4-inch Paring Knife is rated 4.9 out of 5 by 15.
Rated 5 out of 5 by from Great investment knife! This is my absolute favorite line because of the Ebony wood handle and the durability of the blade which is Cronidur 30 which is 100x's more resistant to corrosion than standard steel. This knife feels like velvet in your hand due to the wood and the curved bolster supports the pinch grip. So much good happening here!
Date published: 2020-04-09
Rated 5 out of 5 by from These are hands down the best German knives on the market. An heirloom collection that will last your life time and those after you. The Ebony wood handles are slim and feel smooth and secure in the hand and the curved bolster is made to make the pinch grip comfortable and puts less stress on the wrist. With a 12.5 degree angle these knives cut like a Japanese style knife and the Cronidur 30 steel keeps the edge sharp through the toughest projects.
Date published: 2020-04-24
Rated 5 out of 5 by from A fantastic paring knife The Twin 1731 collection is one of the most beautiful and best that Zwilling has ever made. They took the look of the Zwilling Pro knives with the curved bolster, but they used a different steel with the Cronidor 30 (a steel used on space shuttles) that is harder and sharper and then accented the blade with an ebony wood handle that is seamless and rivetless, making this a statement knife. A very sharp paring knife, this is the German knife you want in your kitchen for peeling tough skins like potatoes.
Date published: 2020-04-20
Rated 5 out of 5 by from Collector Quality Such a beautiful knife! The solid handle is made from ebony wood which is very dense, dark and durable; only a limited number of trees where cut for this anniversary edition. The blade is quite unique! It is made from Cronidur 30, the steel used for space shuttle bearings; 100x more durable and corrosion resistant than anything on the makret. It's incredibly sharp and very comfortable with the signature curved Pro bolster.
Date published: 2020-05-11
Rated 5 out of 5 by from This is the sharpest paring knife you'll ever use. I'm amazed at how sharp this knife is and how smoothly it cuts through everything. The steel is Cronidur 30 which is among the hardest of steels so the razor sharp edge will stay that way use after use. The curved bolster which is a comfortable spot for your thumb and forefinger is attached to a gorgeous ebony handle. I'm really impressed with this knife.
Date published: 2020-05-15
Rated 5 out of 5 by from Feels fabulous! Worth the splurge! I rarely buy a kitchen implement that I want to 'collect' and put on a shelf and not use. But with the knives in this line, I have thought about it. But, nah, knives are meant to be put into service - so mine is put to work daily. LOL. Here is why I am in love. The quality of the Twin 1731 line is unmatched. The specialty steel makes the 1731 line unique; it is the same steel that is used in space craft. That kind of durability is what you want from knives of this quality. The blade will stay sharp for a long time, it can stand up to the demand of regular professional use. And it will take an edge when it's sharpened. The angled integrated bolster - a recent innovation - makes for better comfort and more control. Each beautiful sculpted ebony handle is unique for it's grain. Regular oiling will bring out the depth and color. This is a special line to commemorate Zwilling's founding in 1731. So I expected it to have all the best attributes, and it does!
Date published: 2020-05-04
Rated 5 out of 5 by from craftsmanship The look and feel tells the story. The innovative pro bolster is super comfortable to grip. Grip like a Pro!! this is an extremely sharp, durable blade. I use this for slicing, peeling and mincing small fruits and vegetables. Great for mincing ginger and garlic! Beautiful and comfortable handle.
Date published: 2020-04-22
Rated 5 out of 5 by from Precision Paring Knife The blade of this paring knife is exceptionally durable with an acute edge angle. Forged from Cronidur 30 steel, it is more corrosion resistant than your average knife. A comfortable ebony wood handle, with curved bolster, promotes a professional grip for precision cutting.
Date published: 2020-04-24
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When using a Chef's Choice Electric Sharpener, what edge angle do you recommend I use for the entire 1731 series? I have a few of these knives. 15 degree? 20 degree?

Asked by: Anonymous
Thank you for contacting ZWILLING! The sharpening angle for our 1731 Series is 12.5 degrees on each side and 10 degrees for the Santoku We do not recommend the use of any electric sharpeners, as this may damage the edge. Thank you ZWILLING
Answered by: ZWILLING
Date published: 2021-07-06

Where is this knife manufactured? Is it made in Germany or in China?

Asked by: jphilip
This knife is manufactured in Germany.
Answered by: ZWILLING
Date published: 2018-04-24
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