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Details
Specifications
- Series: Victorinox Fibrox Pro
- Type: Boning knife
- Blade length: 5 inches (12.7 cm)
- Blade shape: Straight, narrow
- Flex: Stiff
- Edge: Straight (plain) edge
- Blade: stamped high-carbon stainless steel
- Hardness: 56 HRC
- Handle: Fibrox Pro thermoplastic elastomer (TPE), black, textured and slip-resistant
- Certification: NSF certified for commercial kitchens
- Made in: Switzerland
- Warranty: Victorinox lifetime warranty against defects in material and workmanship
- Model number: Victorinox 5.6403.12 (US item 40510)
This Blade in Other Sizes and Handles
| Knife | Blade | Handle |
|---|---|---|
| Hardwood 5-inch Straight Narrow Stiff Boning Knife | 5 in. | Hardwood (formerly Rosewood) |
| Fibrox Pro 6-inch Straight Narrow Stiff Boning Knife | 6 in. | Black Fibrox Pro |
| Hardwood 6-inch Straight Narrow Stiff Boning Knife | 6 in. | Hardwood (formerly Rosewood) |
Choosing a Victorinox Boning Knife
Narrow blades turn tightly around joints; wide blades add stability and leave more steel for resharpening. Our Kitchen Knife Shapes guide explains each shape, and the full range is in our Victorinox boning knives category.
| Blade | How it behaves | Typical jobs | Example |
|---|---|---|---|
| Stiff, straight | Holds a straight line and resists bending | Beef and pork joints, cartilage, chops | Fibrox Pro 6-inch Stiff Wide |
| Stiff, curved and wide | Rigid blade with a sweep that follows the bone | Larger cuts, long strokes along ribs and shoulders | Fibrox Pro 6-inch Curved Stiff Wide |
| Semi-stiff, curved | Firm enough to work joints, with a little give along bone | General boning of poultry, pork and beef | Fibrox Pro 6-inch Curved Semi-Stiff |
| Flexible | Bends to trace the shape of the bone | Poultry, fish, silver skin | Fibrox Pro 6-inch Flexible |
| Super flex | The most bend, for working closest to the bone | Long hours of trimming and close boning | Dual Grip 6-inch Curved Super Flex |
Choosing a Handle
Victorinox fits the same Swiss blades to several handles, so a shape you like can be chosen in the grip that suits your work.
| Handle | Material | Care | Who it suits |
|---|---|---|---|
| Black Fibrox Pro | Textured TPE, slip-resistant when wet | Dishwasher safe per Victorinox; hand washing protects the edge | Commercial kitchens, processing rooms and home cooks who want an easy-care grip |
| Colored Fibrox Pro | The same TPE handle in red, blue, yellow or green | Same as black Fibrox Pro | Kitchens that assign knives to food groups under a HACCP color-coding plan, and anyone who wants a knife that is easy to spot |
| Fibrox Pro Dual Grip | Two-component, non-slip handle that supports the hand and wrist | Same as black Fibrox Pro | Cutters who work for hours at a time and want more support for the hand and wrist |
| Hardwood (formerly Rosewood) | Modified maple stained in the traditional rosewood color | Hand wash only | Butchers and cooks who prefer the feel and look of a wood handle |
Keeping the Edge
Victorinox steel at this hardness takes a fine edge quickly and responds well to honing. A few light strokes on a honing steel during a work session keep the edge aligned; sharpen on a stone or a guided sharpener when honing no longer brings it back. Our Honing Rod Guide compares regular, fine and polishing cuts, and the Victorinox 12-inch fine cut honing steel suits these blades.
Care
- Victorinox rates Fibrox Pro knives dishwasher safe. Washing by hand and drying at once keeps the edge from knocking against other items in the rack.
- Cut on wood or soft composite boards rather than glass, stone or ceramic.
- Store in a block, on a magnetic strip or in a sleeve such as the Victorinox Knife Safe for 4-inch to 6-inch Knives, not loose in a drawer.
Additional Info
| Blade Length (Inches) | 5 in. |
|---|---|
| Blade Length (mm) | No |
| Blade Width (inches) | No |
| Grind | 50/50 Bevel |
| Steel Type | Martensitic Stainless Steel |
| Rockwell Hardness | 55/56 |
| Stainless | Yes |
| Handle Material | Fibrox |
| Spine Thickness (mm) | 2 |
| Brand | Victorinox |
| Country of Manufacture | Switzerland |
| SKU | 5.6403.12 |
| Manufacturer's Part Number | 40510 |
| Manufacturer's Suggested Retail Price | $33.00 |
