• Rosellis diamond sharpener which is double sided
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Diamond sharpener, double sided

Diamond sharpener, double sided

€ 31
€ 31
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Ships within 1-2 business days
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Ships within 1-2 business days

SHIPPING WITHIN THE EU:

1. Standard Shipping (5-7 days):

  • FREE for orders over 100€
  • 10€ for orders under 100€

2. DHL Express (2-4 days): 25€

SHIPPING OUTSIDE EU:

1. DHL Express (6-9 days):

  • Free for orders over 150€
  • 35€ for orders under 150€
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Handmade in Finland

At Roselli, we take pride in our handmade process. Our skilled craftsmen create unique, high-quality products using local materials. Choosing a handmade Roselli means getting authenticity and a piece of our history. Explore our story here.

Lifetime warranty

We offer a lifetime warranty on all our knives and axes. Our confidence in our craftsmanship ensures top quality. The warranty excludes accessories like sheaths and sharpening tools. Our lifetime warranty is your assurance. Learn more here.

Free sharpening service

A Roselli is made to be your lifelong companion, your #oneknifeforlife, and a sharp blade is crucial. That's why we offer free sharpening for life. Learn more about our free sharpening service here.

Free engraving

Create memories and personalized gifts with an engraved Roselli. An engraved knife or axe is a cherished gift for any occasion. We offer free engraving on all our knives and axes. Add your engraving before adding your product to your cart.

DHL express delivery

SHIPPING WITHIN THE EU:
DHL Express (2-4 days): 25€

SHIPPING OUTSIDE EU:
DHL Express (6-9 days): Free for orders over 150€

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Details

Double-sided for fast and efficient grinding. With fine and coarse side (600/300 grit) for UHC steel. No soaking required, just a little water.

Product description

The double-sided diamond sharpener behaves like a regular sharpening stone, but achieves results faster. This diamond sharpener has a fine and coarse side of 600 and 300 grit (30 or 60 micron diamonds), that is suitable for end sharpening. Doesn't need to be soaked; a light splash of water is all that is needed while sharpening.

See our video how to use your diamond sharpener:

How to - Sharpen your knife

 

Product data

Diamond surfaces: 75 x 19 mm

Thickness: 3 mm

Width: 20 mm

Total length: 170 mm

Reviews

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  • Excellent craftsmanship!

    I have purchased several knives and and axes with accessories directly from Roselli and from Finnwerk in Germany. I use them myself and have also gladly given them as gifts to the delight of the new owners. The quality of the craftsmanship is excellent. The lifetime warranty and unlimited sharpening service are unique features that other manufacturers do not offer. I can only warmly recommend every single piece of this craftsmanship.

    Michael

  • Never without my Roselli!

    Never head out without my Roselli, at least one of them. They all hold a good edge. My 19 inch Axe splits firewood like butter and my Grandfather knife is always on my belt, if not my Heimo. Good steel and comfortable wood handles.

    Peter

  • Roselli Carving knife

    A very nice carving knife. Made from carbon steel. Sharp and I'm sure it is sharp for a long time.

    Dirk

  • Roselli are by far the best!

    I have owned Roselli knives and axes for many years... I probably have 60 knives or more, but the Rosellis are by far the best!

    Peter

  • Fantastic knife!

    The Bear Claw, UHC is a knife that I've been looking for. I carry it with me everyday around my neck. It's insanely sharp.

    Piotre

  • King of Axes!

    This axe is absolutely amazing for a woodsman like me. Never another axe!

    Arne

  • Best steel ever

    In my opinion it is by far the best steel ever!

    Mikael

  • No doubt is the best!

    You guys make the longest lasting, best tools I have ever used! No doubt this is the best!

    Kim

  • Great experience

    Great experience, quick service, excellent quality and every outdoorsman should have one of these knives!

    Mike

  • Such beautiful knives

    Such beautiful knives!

    Günther

  • Some serious customer care

    This is some serious customer care!

    Rasmus

  • You guys are the best!

    You guys are the best!

    Vicky

  • Many thanks

    Many thanks to the fast delivery and of course top quality!

    Carsten

  • Great experience!

    Nice products, good service & easy to shop!

    Kaj

  • Very nice and very, very sharp.

    Great service, fast response, very friendly. My Carpenter, UHC is very nice and very very sharp.

    Erkki

  • Super fast shipping

    Received my knives and axe today. Service was excellent and super fast shipping from Finland, was amazing!

    Matt

  • Beautiful products

    Beautiful products with great service!

    Sylvian

  • My new favorite Roselli

    The Big Leuku is a beautiful and extremely versatile knife, probably my favorite Roselli knife so far.

    Kevin

  • The finest tools!

    Roselli has the finest tools you could have for all your outdoors activities.

    Omer

  • The best knife ever!

    Just got Roselli's Hunting knife, UHC a couple of weeks ago and can't put it down. This is the best knife I have ever held in my hands.

    Adrian

  • Premium quality!

    Roselli’s handmade UHC steel is premium quality - one of a kind. A beautiful gift and practical tools!

    Toni

  • Roselli fan for life!

    I met Mr. Roselli once years ago in Finland. He showed me the shop and was a great host and regular person. I have never forgotten his generosity and like my knife, I am a Mr. Roselli fan for life!

    Sawyer

  • Have used my knives for seven years!

    Have used my knives for seven years. Easy to sharpen and stays sharp for a long time. Great service too!

    Kent

  • I am very pleased!

    I am very pleased with my Carpenter knife, UHC. Fine craftmanship, wonderful balance and feeling. I will now think of you guys every time I cut my fingers! ;)

    Marc

  • Roselli makes an excellent product!

    Roselli makes an excellent product that is aesthetically pleasing to the eye as well as touch and fit. I would recommend it.

    Sheri

  • I will definitely be back to shop here

    Great customer service! Very fast shipping and excellent quality material and knives! I will definitely be back to shop here.

    Yuri

  • The blade is a razor!

    The finish and handling are top notch! The blade is a razor, butchering the boar was a breeze!

    Raf

  • Exceptional knife!

    I recently bought your Big Leuku and I find it to be an exceptional knife. I've used it before to prune a large branch and make wood for a fire and despite having put in some hard work it still cuts like a razor. Fantastic Roselli!

    Franco

  • I own 10 knives from Roselli!

    Over the years, I have bought many knives of various types from various companies. That changed when I got my first knife from Roselli. I was thrilled and realized what a proper knife should look like. Since then, I have had 10 different knives from Roselli, including kitchen knives and also an axe. Amazing quality and craftsmanship. I highly recommend them to everyone.

    Milan

  • Roselli is irreplaceable!

    I have been using Roselli knives for about 2 years. Great for survival, preparing meat and fish, and also good for bushcraft. Roselli's steel is extremely compatible with fire steel. I also love the history of Roselli. For me, Roselli is irreplaceable.

    Kouya

  • Best small bushcraft knife!

    The Carpenter is the best small bushcraft knife I ever had. Beautiful, comfortable, light as a feather, has a very good edge geometry and factory sharpness, and keeps that edge for a long-long time. And when it's time to strop, it takes no time to get that scary edge back. My other purchase was the Hunter. The handle is a bit too big for my hand, but I love the bladeshape very much. I can definitely see why it is such a popular knife! I will probably buy a blade and make my own handle to fit me better. I will definitely get a Carving Knife and a Roselli Axe too!

    Bence

  • I have almost all of Roselli's knives!

    I now have almost all of Roselli's knives and the axe with a short handle, all of them are simply fantastic.

    Franz

Premium Roselli knife in dark wooden gift box

Quality not Quantity

Each Roselli is created with the highest attention to detail and an absolute focus on quality. No shortcuts are taken – we make everything by hand, from fantastic local natural materials, using old blacksmithing techniques, in a local workshop in Harmoinen Finland. Here, everything is manufactured in much smaller quantities, which ensures that we can minimize our waste and footprint on the environment.

Roselli knife with carbon steel and curly birch

Premium Materials

Our products are made from the finest natural materials and raw materials that follow the highest ethical standards. High-quality carbon steel, Finnish curly birch and Finnish natural tanned leather form the basis of all our products. Our locally produced, organic and ethical leather comes from free animals and has been vegetable tanned where only organic material is used instead of destructive chemicals.

Roselli factory hammer hand forging

100% Handmade in Finland

We will always keep our manufacturing in our small factory in Harmoinen, Finland. This enables us to ensure the highest quality of our products and that our employees enjoy fair working conditions and that we are always in control of our environmental impact. Increased quality and product durability mean many years of product enjoyment and reduced future consumption.

The Roselli factory from above showing their solar cells on the roof.

Our Environmental Impact

We are constantly exploring new ways to minimize the impact of our business operations on the environment. In addition to our long-term sustainability goals, we choose local natural materials to minimize transport and a transport partner whose electrified road transport is increasing all the time. Our solar cells give us a good renewable alternative for our heating and electricity consumption.