Robert Welch Professional Flexible Utility Knife 16cm
Robert Welch Professional Flexible Utility Knife 16cm
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Robert Welch Professional Flexible Utility Knife 16cm
Filleting fish and working meat close to the bone are tasks that call for a blade that gives way rather than one that pushes through. The Robert Welch Professional Flexible Utility Knife has a 160mm blade manufactured from German DIN 1.4116 stainless steel, ice-hardened to Rockwell 57, with a hand-applied 15° edge using World Edge Geometry. What sets it apart from the rest of the Professional range is its flexible blade: where a rigid knife would catch and drag on bone or tear delicate flesh, the flex in this blade allows it to follow the contour of a fish skeleton or joint, enabling cleaner, more precise cuts with less waste.
At 162g and 274mm in overall length, it sits in a practical mid-range size and weight for this type of work - substantial enough to feel controlled in the hand, but light enough not to feel unwieldy during the fine, close movements that filleting and boning require. Construction is fully forged with a full tang, and it comes securely boxed.
- Steel: German DIN 1.4116 stainless steel, ice-hardened to Rockwell 57
- Construction: Fully forged, full tang
- Blade: Flexible - designed to follow bone and contour without tearing flesh
- Edge: Hand-applied 15°, World Edge Geometry for resilience and lasting sharpness
- Blade length: 160mm / 6.5"
- Overall length: 274mm
- Weight: 162g
- Handle: Ergonomic DuPont™ POM with permanent RW steel insignia
- Suited to: Skinning and filleting fish, boning and carving meat and poultry
- Packaging: Securely boxed
- Guarantee: Robert Welch lifetime guarantee
A specialist addition to the Robert Welch Professional range for cooks who regularly work with whole fish or bone-in cuts of meat and poultry.
Please note: You must be aged 18 or over to purchase this product in the UK.
What Customers Ask About the Robert Welch Professional Flexible Utility Knife
What does blade flexibility actually do, and why does it matter for filleting?
When filleting fish or carving meat close to the bone, a rigid blade has to be forced past the resistance of bone and cartilage, which often results in dragging or tearing delicate flesh. A flexible blade bends to follow the surface it's working against - the ribcage of a fish, the shoulder blade of a lamb, the thigh bone of a chicken - allowing you to keep the blade in contact and maintain a consistent, shallow cut. The result is cleaner separation with less waste and less damage to the flesh on either side of the cut. Robert Welch describe the flexibility as enabling "more precise cuts to help reduce any damage to delicate flesh."
Is this a filleting knife or a boning knife - what is the difference?
Robert Welch describe this as a flexible utility knife suited to both filleting and boning tasks, which puts it in a practical middle ground between the two categories. Dedicated filleting knives are typically longer and thinner, optimised for separating fish from the skeleton in long strokes. Dedicated boning knives can be stiffer or flexible depending on use, and are often shorter with a narrower tip for working into joints. This 16cm knife is designed for both tasks and will suit most home cooks who do not need two separate specialist blades.
Can I use this knife for tasks other than fish and meat work?
The flexible blade is primarily designed for filleting, skinning and boning. It will work for some other tasks - slicing soft cheeses, for example, is a common secondary use for a flexible blade - but it is not a direct substitute for a chef's knife or santoku for general prep work. The flexibility that makes it effective around bone works against you for tasks that require a rigid blade to maintain a straight cutting line, such as chopping vegetables.
How does a flexible blade coexist with a forged, full-tang construction?
The flexibility in this blade comes from its geometry - a thinner cross-section and narrower profile - rather than from a softer or weaker steel. The blade is still fully forged from DIN 1.4116 stainless steel hardened to Rockwell 57, which means it holds its edge and maintains its structure under use. The full tang provides the balance and stability you feel in the handle, while the blade itself retains the designed flex along its length. Forged construction and blade flexibility are not mutually exclusive.
How do I sharpen a flexible knife?
The 15° edge is designed for home maintenance without specialist equipment. A sharpener compatible with 15° geometry and flexible blades is recommended - check the specifications on your sharpening tool, as some pull-through sharpeners are not suitable for flexible blades. A honing steel used regularly between sharpenings will help maintain the edge for longer. When honing or sharpening, keep the blade flat against the steel rather than allowing it to flex during the stroke.
Is this knife included in the Robert Welch knife block sets?
No - this knife is sold individually and is not part of either the Angle Oak or Book Oak Knife Block Sets. Those sets include six other knives from the Professional range covering everyday tasks. If you're building a complete collection, the flexible utility knife makes a specialist addition alongside one of those sets.
Specifications
Why Buy From Art of Living?
Founded in Reigate in 1972, we've spent over five decades helping customers select quality cookware and kitchen equipment. We've been twice nominated for the Excellence in Housewares award for customer care.
Our Guarantees to You
- ✓ No Quibble Returns - Even Used Items
- ✓ Half-Price Accidental Damage Replacement (2 Years)
- ✓ Price Match Guarantee
Read our full guarantee policy →
Questions? Visit our contact page
Care & Use Instructions
Washing: Hand washing is recommended to prolong blade life and handle finish. Dry thoroughly after washing, particularly along the blade length, before storing. If dishwasher use is unavoidable, remove and dry promptly.
Sharpening: The 15° edge is designed for home maintenance. Use a sharpener compatible with 15° geometry and flexible blades - check your sharpening tool's specifications. When using a honing steel, keep the blade controlled and avoid allowing it to flex during the honing stroke, as this can produce an uneven edge.
Storage: Store on a magnetic knife rack, in a knife block, or with a blade guard. A flexible blade is more susceptible to distortion from sustained contact with other items in a drawer, and the tip is vulnerable to damage from contact with hard surfaces.
Use: Allow the blade's natural flex to do the work around contoured surfaces - do not force the blade or apply lateral pressure beyond its designed flex range. Clean the blade promptly after use with fish or raw meat.
Safety: Always work on a stable, non-slip surface. This product must not be sold to or purchased by anyone under the age of 18 in the UK.
Frequently Asked Questions
What if I've used it and don't like it?
Return it anyway. Our no quibble guarantee covers used items - if it doesn't do what you wanted, we'll refund you. This applies even after you've used it in the kitchen.
How does the Half-Price Accidental Damage Replacement work?
Valid for 2 years from purchase date. If you accidentally damage this knife, we'll replace it at half price with proof of purchase and evidence of the damage. Photos are acceptable.
Does this knife come with the Robert Welch lifetime guarantee?
Yes. The Robert Welch Professional Flexible Utility Knife comes with a Robert Welch lifetime guarantee. For full details of what is covered, refer to the documentation included with the knife or contact Robert Welch directly.
How long does delivery take?
Standard delivery to mainland UK addresses can take up to 7 working days, but is usually 3-4. Next day delivery may be available for £9.95 on orders placed before 1pm Monday to Thursday, depending on your location and our stock levels. You can also collect from our shops in Cobham or Reigate, or our warehouse in Redhill.
Is this a good gift for a keen cook or angler?
It arrives securely boxed and makes a practical, specialist gift for anyone who regularly fillets fish, works with whole birds, or wants more from their meat preparation. If you'd like advice on pairing it with other knives from the Professional range, call us on 01737 222996.
Can I buy this if I am under 18?
No. It is a legal requirement in the UK that this product is only sold to customers aged 18 or over. Age verification may be required at checkout or on delivery.
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“ Master knife selection with our expert guide. Learn blade types, steel grades, maintenance tips, and find your perfect chef's knife. 50+ years of expertise.” Read more about my views on Kitchen Knives in my article Kitchen Knife Buying Guide  by Andi HealeyArt of Living - Web Manager |
