Martinez Albainox RainBlue Balisong Blue Printed Steel, Blue Printed 3Cr13Mov (02140)
- Balisong Blue Printed Steel, Blue Printed 3Cr13Mov (02140) - a striking butterfly dagger knife, fully covered with a decorative print. Made of 3Cr13Mov steel, it comes with a case and RainBlue gift box.

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.
Balisong Blue Printed Steel, Blue Printed 3Cr13Mov (02140) sub-brand RainBlue from Martinez Abainox is a balisong with a unique aesthetic character, which combines the functionality of a classic butterfly knife with artistic design. The entire surface of the knife - both Blade and Handle - is covered with a decorative print in shades of blue and gold, inspired by geometric and floral motifs. This makes the knife perfectly suitable as a collector's item, while retaining all the characteristics of a utilitarian tool. The 3Cr13Mov steel used guarantees corrosion resistance, easy care and sufficient durability for everyday use. The metal screw-based design allows maintenance and tension adjustment, which both beginners and experienced users will appreciate. The kit comes with a soft carrying case with a trouser and an elegant box with the RainBlue logo, emphasizing the exclusive nature of the model.
Balisong / butterfly / batangas / taal / butterfly - among the various types of knives, one stands out for its particularly impressive handling. This is the balisong butterfly knife, also known as “butterfly” or “bali”. Its history can be traced back to the 18th century Philippines, where it served not only as a practical tool, but also as an effective weapon for self-defense. Although the exact origin of the balisong remains shrouded in mystery, it is traditionally associated with the village of Balisong on Batangas Island. Its name in Tagalog means “broken horn,” which accurately reflects the knife's distinctive design. It consists of two handles that rotate around the Blade, resembling the movements of a butterfly's wings. Balisongs instantly gained recognition among Filipino warriors, gaining status as the national weapon. Their efficient opening and closing required extraordinary dexterity, evolving into an art form known as “flipping.” In the twentieth century, butterfly knives reached the West, gaining popularity among soldiers, sailors and enthusiasts of spectacular tricks. Today, despite the fact that in many countries their possession is subject to legal restrictions, balisongs continue to fascinate with their extraordinary agility and rich tradition.
3Cr13MoV is a martensitic chromium steel that has been enriched with molybdenum (Mo) and vanadium (V) to improve its performance properties. The typical chemical composition includes about 0.26-0.35% carbon (C), 12.5-14.5% chromium (Cr), 0.4-0.6% molybdenum (Mo) and 0.1-0.2% vanadium (V). The addition of chromium provides corrosion resistance, while molybdenum increases hardenability, high-temperature strength and resistance to pitting corrosion. Vanadium contributes to the hardness, wear resistance and fine grain structure of the steel. 3Cr13MoV is used for knives (often found in folding knives and hunting knives), medical tools and other applications where a good combination of corrosion resistance, hardness and strength is required. It is an improved version of 3Cr13 steel, offering better sharpness retention and overall durability.
Blade - with a dagger profile is made of 3Cr13Mov stainless steel , offering a symmetrical silhouette with a false blade and good penetration and stability. A blue-gold print with geometric and floral motifs gives the blade a striking, decorative look, distinguishing the model from standard designs. The single-sided grind and slim shape facilitate manipulation, especially when practicing rotary techniques.
Handle - made of stainless steel was covered with a print identical to the Blade, creating a visually consistent, ornamental whole. Ergonomic profiling of the arms and soft edges ensure comfort and safety of use. The classic latch lock allows for stable locking of the blade in the closed or open position. An additional accent is the decorative tip in the same design. Model 02140 is for those who appreciate both technique and aesthetics in everyday tools and collections.
Technical data:
Product number: 02140
Product name: Balisong Blue Printed Steel, Blue Printed 3Cr13Mov
Overall length: 224.0 mm / 8.82"
Blade length: 100.0 mm / 3.94"
Blade thickness: 2.38 mm / 0.09"
Handle length: 124.0 mm / 4.88"
Handle thickness: n.a.
Weight: 129.0 g / 4.55 oz
Blade material: 3Cr13MoV
Blade hardness: n.d.
Blade grind: Flat
Blade finish: Blue / Gold printed
Handle material: Stainless Steel
Handle finish color: Blue / Gold printed
Backspacer material: Stainless Steel
Backspacer color: Blue / Gold printed
Clip: none
Clip material: n.d.
Pivot mechanism: n.d.
Lock: Latch
Opening method: Manual
Additional accessories: none
Designer: Martinez Albainox
Brand name: RainBlue
Manufacturer: Martinez Albainox S.L.U., Spain
Country of origin: n.d.
Developed by: the Sharg® company