Woodlore — School of Wilderness Bushcraft

Fallkniven DC4 Diamond/Ceramic Whetstone

Fallkniven DC4 Diamond/Ceramic Whetstone

Brand: Fallkniven
  EAN 5060246910483
Weight: 80 g         72 reviews
The Fallkniven DC4 Diamond Ceramic Whetstone is a popular combination whetstone made for accurate knife sharpening in the field. Small and lightweight, the DC4 is ideal for keeping on you when travelling by foot. For a more compact whetstone, take a look at the Fallkniven DC3 or, for a larger whetstone, the Fallkniven DC521.

The DC4 features two different sharpening surfaces; one is a fine diamond whetstone of 25 micron, while the other is a fine ceramic whetstone, made of synthetic sapphires. If your knife is dull, it is recommended that you begin by using the diamond side, which will restore the wedge shape of the blade's edge. Following this, you can de-burr the edge lightly using the ceramic side, in order to get a razor-sharp edge.

The DC4 is a very low-maintenance tool in the sense that it can be used dry, without the need for any lubrication from oil or water. Every now and then, it is recommended that you simply clean the stone in warm, soapy water.

A major benefit of the DC4 is that, while the stone will become worn over time, the sharpening surfaces will remain flat, helping to aid efficient sharpening. The supremely strong surfaces can be used to sharpen any type of steel, including hard powder steels. At first, the sharpening surfaces may feel overly coarse, but this initial roughness will diminish after use.

After sharpening your knife, Woodlore recommend the use of Ice Bear Camellia Oil to protect the blade from rust and corrosion.

  • Dimensions: 100 x 32 mm
  • Weight: 65 g
  • Leather sheath included


1-2 Day Delivery possible

  Delivery in 1-2 days (within UK)
  Orders placed before 2PM GMT will be dispatched the same working day
  Overseas delivery times will vary depending on the destination

Please note that our offices are closed on weekends, so any orders placed after 2PM GMT on Friday will not be dispatched until the following Monday.

Orders with a total value over £300.00 will be dispatched free via a next day delivery service within the UK at no extra cost.

Please note that in some instances, orders for heavy items may take an extra day to arrive.

For overseas deliveries, please refer to the following estimated delivery times:

  • Europe: 3 - 5 working days
  • Rest of the world: 5 - 7 working days


A full refund or exchange will be given provided that the items have not been worn or used, and are returned to us within 14 days of purchase, together with all relative labels and packaging. You are responsible for the cost of returning items.

Please ensure that you include a copy of your invoice, along with an explanation of why you have returned your goods. If you wish to return your goods for any reason, please do so to the following address:

Woodlore Limited
PO Box 3
East Sussex
TN19 7ZE
United Kingdom

Product Video

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Product Reviews

Fallkniven DC4 Diamond/Ceramic Whetstone is rated 5/5 based on 72 customer reviews.

Overall Rating:

  1 of 72

  Fantastic little double sided whetstone that comes in a leather pouch for storage. Bought it to go in my work rucksack to use with both fixed and foldable knives. Got my Swiss Army Knife blades to razor sharpness, enough to dry shave the hairs off your arm - never underestimate how useful a sharp knife is, even I was surprised how good the edge is. Cleans easily enough in warm water and a little hand soap, just make sure you dry it thoroughly and set it on some newspaper (or similar) to draw the extra moisture out of the stone as it will hold a little. My only criticism is that it is thin and any knife with a thicker handle, you may struggle to get you blade to the right angle to sharpen up and so a stand with a grippy surface would be a good investment to accompany it. I used a 10cm thick book so my hand could move with ease, but this is to be used in the field and this can be easily overcome. To summarise, a great product and would buy again (if ever needed) and a hearty recommendation.  

  Sam Kimsey

Rated: 5/5

  2 of 72

  Bought this to keep my knife sharp when out. More than happy with it. It gives a sharp edge every time.  

  Stephen Tomlinson

Rated: 5/5

  3 of 72

  It's a great stone, small and portable and gives my knives a good edge when out and about.  


Rated: 5/5

  4 of 72

  Seems to work fine and it's very small too.  

  Paul Sloan

Rated: 5/5

  5 of 72

  A really easy to use knife sharpener, I have used this for both domestic and outdoor knives and it has given me a good edge even with knives that haven't seen a sharpener in a long time! The size is great as it can live in my rucksack ready for whenever I need it.  

  Arwen King

Rated: 5/5

  6 of 72

  Only used it once so far. Does exactly what it does on the tin. Compact great little sharpener.  

  Johnnie Waugh

Rated: 5/5

  7 of 72

  Does what it should, although it is small. This is a good sharpening stone to bring with you when you are outdoors. For home use, I would go for a bigger sharpening stone.  

  Anna Scheutz

Rated: 4/5

  8 of 72

  An excellent pocket sized sharpening kit. I'm very grateful to Ray and his team for their splendid customer service.  

  Chris Mason

Rated: 5/5

  9 of 72

  Fantastic product; puts a razor edge back on the knife/axe in just a few strokes. Small enough to live in the top of the bag. Highly recommended.  

  John Jacques

Rated: 5/5

  10 of 72

  I've always wanted one of these, but was in two minds whether or not to get one. My friend lent me his DC4 to have a play with to sharpen my blades. Well, I'm very impressed. I went and purchased one from Woodlore. Now it's a part of my EDC kit. Just to be able to touch up your knife in the field, it's awesome. The DC4 is well worth getting; I'd even go as far as to purchase another DC4 just in case I lose this one, or put in another kit bag as a spare.  

  Paul Blackburn Elliot

Rated: 5/5

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