- Outdoor 631 universal knife for intensive use. It has the features of a combat knife, ergonomic handle, excellent balance. Nitro-B highly rust-resistant surgical stainless steel with a high nitrogen content of 0.21% and a hardness of up to 62HRC


This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Outdoor 631, a universal knife designed for intensive use. It has the features of a combat knife, half tang construction, ergonomic handle and excellent balance.
Nitro-B - highly rust-resistant, stainless surgical steel with a high nitrogen content of 0.21%. A durable steel with good edge grip and extreme hardness up to 62 HRC.
Blade - solid Drop Point. Combo blade, Plain and Serrated (saw blade) with Flat Grind for excellent cutting-edge geometry and low friction cutting performance. On the back of the blade a multifunctional saw for cutting hard materials, plastics and fibrous materials such as ropes, cords, lines or nets.
Technical data:
Product number: MC 631
Product name: Outdoor 631
Overall length: 295mm / 11.61"
Blade length: 170mm / 6.69"
Handle length: 130mm / 5.10"
Blade thickness: 4mm / 0.15"
Weight: 305g / 10.76 oz
Blade Material: Nitro-B
Blade hardness: 58-60HRC
Blade edge: Flat
Blade Finish: Satin
Handle material: Plastic
Handle finish colour: Black
Sheath: Plastic
Sheath colour: Black
Designer: MAC Coltellerie
Manufacturer: MAC Coltellerie
Development: Sharg® company