Casström No.10 SFK Curly Birch

This robust full-tang knife is built for versatility – you can use it for bushcraft, hunting and various tasks in the great outdoors. It is a very sturdy knife that you can use to skin a moose as well as carve hard wood or split smaller logs. The blade is about 10cm long and made from 3.8mm thick Swedish 14c28n stainless knife steel and heat treated to achieve a hardness of 57-59 HRC. The knives are ground with a shaving sharp flat Scandinavian grind and have a satin finish. This steel in combination with the grind makes these knives very strong, yet very easy to sharpen and it takes a great edge.

ABOUT THE STEEL: Sandvik 14c28n is the latest development in Sandvik’s range of knife steels. Optimized chemistry provides a top grade knife steel with a unique combination of excellent edge performance (stability and ability to take an edge), high hardness and good corrosion resistance. This new grade allows for better hardness and wear resistance to previous grades without affecting the micro structure. Blade re-sharpening is therefore easy. At the same time, edge stability in terms of micro chipping and edge folding or rolling is also good.

The difference between Scandinavian grind and a Full Flat grind: This steel in combination with a Scandinavian grind makes these knives very tough and resilient – ideal for heavy chores. It also allows the knife to be controlled very accurately when carving wood. This grind is particularly suitable for bushcraft use. When re-sharpening, the whole bevel should be sharpened in order to maintain its properties or a secondary bevel can be added to make the edge even stronger. The full flat ground version is sharpened from the spine of the blade with a more acute angle and with a less acute secondary bevel. This grind makes the knives very effective at cutting softer materials – versatile yet still very strong. Some control is lost when carving wood but the knife is easier to use for skinning, preparing food and most day to day chores. When re-sharpening the full flat grind, only the secondary bevel is re-sharpened with an angle of approx 40-50 degrees in total.

The handle is 12cm long and available in a variety of materials. Between the handle scales and steel are black liners to increase durability over time . The handle is secured with strong brass rivets which also gives the No.10 a classic look. The wood has been treated with a traditional Scandinavian linseed mixture. The knife comes with a very sturdy cognac brown knife sheath (black for the green micarta version) made from 3mm thick vegetable tanned leather. The sheaths have an extra wide belt loop, an opening in the bottom for liquid, and a hole for a lanyard strap.