Casstrom No.10 SFK Green Micarta Sleipner Kydex Fixed Blade Knife

A knife with a Full-Tang construction, representing the first project of the Swedish brand Casstrom and at the same time one of the most recognizable bushcraft models from this manufacturer. Equipped with a Drop-Point blade profile with a length of 103 mm, made from wear-resistant Sleipner tool steel and handle scales made of Micarta composite.

The model was designed for demanding outdoor tasks – from precise wood processing to heavier survival and camp work. The materials used and the full-length tang running through the handle ensure high durability. The No.10 SFK knife was refined over the years until it reached its final form, which gained recognition among outdoor enthusiasts looking for a reliable field tool.  The set includes a sheath made of durable Kydex.

The knife is crafted from a single piece of Sleipner tool steel developed by the Swedish steel mill Uddeholm and hardened to a hardness of 59–61 HRC. The material combines above-average wear resistance with high resistance to cracking and chipping, which is a difficult-to-achieve yet highly desirable combination for models designed for heavy-duty use. The steel used is significantly less susceptible to corrosion than typical low-alloy tool steels. 

This model features a Drop-Point blade with a smooth cutting edge and a length of 103 mm. The blade is finished with a Scandi grind, which is particularly valued in bushcraft knives. This type of geometry works well when planing or splitting wood and preparing firewood.

The blade’s proper balance translates to better control over the knife. The weight is distributed evenly between the blade and the handle, ensuring greater cutting precision and reducing hand fatigue during prolonged use. The blade has been finished with a satin finish.

The handle consists of ergonomically shaped scales screwed onto the tang, made of durable green Micarta composite. This material is highly resistant to mechanical damage, abrasion, moisture, and varying weather conditions, making it ideal for intensive field use.

The slightly textured surface of the scales ensures a secure grip and good control over the knife, increasing safety and comfort of use. At the end of the handle, there is a hole for threading a lanyard or safety cord, which makes it easier to carry the knife and reduces the risk of accidentally losing it.

The set includes a rigid sheath with a wide belt loop, made of lightweight yet durable black Kydex, which allows for comfortable and secure carrying of the knife on a belt. The material is highly resistant to mechanical damage, moisture, and changing weather conditions, making it well-suited for field use.

The sheath is equipped with numerous mounting holes, whose strategic placement allows for the use of additional mounting systems, including the popular Tek-Lok adapter. The sheath design ensures a secure hold on the knife and quick, convenient access to the tool. The smooth surface of the Kydex is easy to keep clean and requires no complicated maintenance.

• Full-tang construction
• Drop-point blade, 103 mm long
• Uddeholm Sleipner tool steel
• Hardened to 59–61 HRC
• high resistance to abrasion, cracks, and chipping
• Scandi grind
• satin-finished blade
• proper balance for improved precision
• Micarta composite handle
• ergonomically contoured grip
• hole for a lanyard or safety cord
• Kydex sheath included
• can be conveniently carried on a belt