The No. 10 was the first knife designed by Casstrom, and the fixed blade has endured and is more popular than ever! The Casstrom No. 10 SFK (Swedish Forest Knife) is a strong all-around fixed blade for hunting, fishing, and general outdoor use. It features a full-tang blade made from Sleipner tool steel with a Scandi grind and satin finish. The durable handle is contoured and shaped for optimum comfort and security during use. Includes a sturdy belt sheath made from Kydex.