Transform your cooking experience
Our knives look absolutely badass while delivering professional, handmade quality.
Lifetime warranty
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The Promaja 6” Chef’s Knife is the ultimate all-around chef’s knife, designed to replace nearly every blade in your kitchen. Its wide, tall blade delivers power and control for slicing vegetables, chopping herbs, and breaking down meat, while also doubling as a scoop to move ingredients from board to pan. Handcrafted by master artisans and perfectly balanced, it reduces effort and speeds up prep. Ideal for home cooks who want one dependable knife for 90% of kitchen tasks - and for anyone who values performance with bold, display-worthy design.
Additional Details
Handle Length: 4.9 inch / 12.5 cm
Blade Length: 6.6 inch / 17 cm
Knife Length: 11.8 inch / 30 cm
Blade Width: 3.9 inch / 10 cm
Blade Thickness: 0.1 inch / 0.25 cm
Blade Angle For Sharpening: 30°
Weight: 0.89 lb / 404 g
*All Coolina knives are custom-made, so they may slightly vary in size.
Our handmade process ensures the highest level of quality.
The high-carbon steel blade holds a razor-sharp edge longer than the competition, while remaining strong and durable.
Most brands mass-produce their knives, compromising on important factors like feel, weight, and balance. At Coolina, we focus on what actually matters — delivering professional, handmade performance with the signature badass Coolina look.
Cleaning
Because these knives are made from high-carbon steel, they should always be washed by hand immediately after use. Carefully wash, then dry the knife completely before storing to prevent moisture from remaining on the blade. Never put Coolina knives in the dishwasher.
Oiling
Our knives come pre-oiled, but after cleaning and drying, we recommend lightly oiling the blade. You can use our mineral oil or any food-safe oil of your choice. Regular oiling helps protect the blade and keeps your knife performing at its best.
Sharpening
Our knives come razor sharp right out of the box and will stay sharp for months. If you want to keep them as sharp as possible, we recommend using our whetstone.
Coolina stands behind the quality of our knives. Our Limited Lifetime Craftsmanship Warranty covers defects in materials and workmanship for as long as the original purchaser owns the product.
If your knife is found to have a qualifying defect, we will replace it at no charge. This warranty does not cover normal wear and tear, misuse, or damage outside of craftsmanship defects. Please refer to our Protection Program Terms for full details and exclusions.
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without compromise.
Experience effortless cuts that feel like slicing through anything like butter with Coolina. The high carbon steel blade holds its edge, staying sharper for longer.
Experience effortless cuts that feel like slicing through anything like butter with Coolina. The high carbon steel blade holds its edge, staying sharper for longer.
Backed by a lifetime warranty you’ll likely never have to use, our knives are built tough and extremely durable. Go ahead and put them to the test — they’re practically indestructible.