Spyderco Endura 4 FRN K390 Plain Folding Knife (C10FPK390)
- Endura 4 FRN, K390 Plain experienced users being outdoors prefer knives that do not need sharpening in the field. For the discerning, Spyderco has introduced a version of the Endura with a blade made of K390 MICROCLEAN steel, Böhler's modern powder tool s
In 1990, Spyderco revolutionized the market with the introduction of two knives, Delica and Endura. Both of the first folders of their kind on the market, they opened up the demand of knives for lightweight and efficient, one-handed opening pocket knives that almost everyone could afford. These models are consistent bestsellers for Spyderco to this day!
Spyderco has always been proud of its efforts to push the boundaries of performance, offering the best steel blades in knives. Keeping this spirit in mind, we are proud to offer the Endura 4 Lightweight with a blade made of K390.
Manufactured by Böhler-Uddeholm, K390 MICROCLEAN® is a state-of-the-art tool steel. The advanced alloy blend is specially formulated to provide the extreme wear resistance and high compressive strength required for industrial operations. Despite its strength, its extremely fine, homogeneous and makes it easy to machine and heat treat.
The Endura knife features a molded FRN (fiberglass reinforced nylon) handle with bi-directional texture for grip and improved ergonomics. The handle is reinforced with double stainless steel skeleton inserts that provide an anchor for all external and internal components, while increasing strength and rigidity. Phosphor bronze bushings on the blade axis smooth out the opening/closing motion. The pocket clip is reversible in four directions, allowing it to be worn up/down, left or right. The blade is made of premium K390 steel and features Spyderco's easy-to-use thumbhole for easy and efficient one-handed opening.
Specification
- Overall length: 8.78 inches (223 mm)
- Blade length: 3.80 inches (97 mm)
- Blade: K390
- Closed length: 4.98 inches (126 mm)
- Edge length: 3.44 inches (87 mm)
- Weight: 3.3 ounces (94g)
- Blade thickness: 0.118 inches (3.0 mm)
- Handle material: FRN
- Clip position: Ambi
- Tip transfer position: 4 positions
- Lock type: rear lock
- Grind: Full-flat
- Origin: Japan
List of knife safety warnings based on requirements
Regulation (EU) 2023/988 on general product safety
(GPSR):
* Risk of injury: Use the knife carefully and always hold it by the handle. The blade is
very sharp and can cause serious cuts. Don't try to catch a falling
knife.
* Safe storage: the knife should be stored in a safe
place, out of reach of children and unauthorized persons. Use a blade guard if
is available.
* Use as intended: Do not use the knife for purposes for which it is not
intended, for example, for opening cans or loosening screws. This can lead to
knife damage or injury.
* Caution when cleaning: Use caution when cleaning the knife,
to avoid cuts. Do not use aggressive cleaning agents that can
damage the blade.
* Blade maintenance: Sharpen the blades regularly to keep them in good condition. Blunt
knives are more dangerous than sharp ones because they require more force, which
increases the risk of slipping.
* Transporting the knife: When transporting the knife, make sure the blade is secured,
for example, by using a vagina or sheath. This prevents accidental injuries.
* Keep your knife clean: Clean the knife regularly to remove any food debris
or other contaminants. This ensures safe and hygienic use.
* Do not modify the knife: Do not try to modify the knife or repair it yourself,
if you don't have the right skills. This can lead to damage to the knife
or injuries.
* Warning for children: knives are intended for adults only. Do not allow
children to use knives without supervision.
* Disposal: Dispose of used or damaged knives in a safe manner to
prevent accidental cuts.
This product is for adults only, who have knowledge and experience in handling sharp cutting tools. Improper use of the knife can lead to serious injury. The blade of the knife is very sharp and can quickly cut through skin and tissues; so always be very careful when slicing and do not bring your hand close to the cutting edge. To avoid slipping of the knife, it is recommended to cut on a stable and non-slip surface and avoid excessive pressure, which can cause uncontrolled movement of the blade.
Be aware that leaving a knife on the edge of a table, countertop or in easy-to-reach places, especially for children, is a danger. The knife should always be properly secured after finishing work, preferably by putting it down on a stable surface or storing it in specially designed blocks, sheaths or on magnetic strips. Never use a knife for tasks for which it is not intended, such as opening cans or using it as a lever, as this risks both damage to the tool and dangerous accidents.
Blunt blades pose an increased risk of injury because they require more force and tend to slip off the material being cut. Therefore, care should be taken to sharpen the knife regularly to maintain optimal sharpness. It is also necessary to clean and dry the tool regularly to prevent corrosion and bacterial growth. It is recommended to periodically inspect the condition of the handle and blade to detect any cracks, chipping or loosening. If damage is found, the knife should be immediately repaired or replaced with a new copy.
When using the knife, focus solely on the task at hand, avoid talking on the phone or watching TV while slicing, and make sure your work area is well-lit. You are reminded that in some countries or regions there are laws restricting the possession and carrying of knives. Before buying or using a knife, it's a good idea to make sure that using it in your location is allowed under the current law.
Adherence to the above rules will enable safe and efficient use of the knife, minimizing the risk of accidents and ensuring the long life of the tool.