--- product_id: 22740213 title: "ULTRASOURCE - Boning Knife, 5\" Curved/Semi-Flexible Blade, Polypropylene Handle" brand: "ultrasource" price: "AR$41370" currency: ARS in_stock: true reviews_count: 12 category: "Ultrasource" url: https://www.desertcart.com.ar/products/22740213-ultrasource-boning-knife-5-curved-semi-flexible-blade-polypropylene-handle store_origin: AR region: Argentina --- # 5-inch curved semi-flexible blade Ergonomic textured polypropylene handle Cryogenically treated high-carbon molybdenum steel ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle **Brand:** ultrasource **Price:** AR$41370 **Availability:** βœ… In Stock ## Summary > πŸ”ͺ Elevate your kitchen game with precision and power! ## Quick Answers - **What is this?** ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle by ultrasource - **How much does it cost?** AR$41370 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/22740213-ultrasource-boning-knife-5-curved-semi-flexible-blade-polypropylene-handle) ## Best For - ultrasource enthusiasts ## Why This Product - Trusted ultrasource brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Edge That Lasts:** Cryogenically treated high-carbon molybdenum steel resists rust and stays sharper, longer - β€’ **Trusted by Pros:** Preferred by butcher shops and meat processors for reliable, daily performance - β€’ **Safety Engineered:** Front and rear bolsters protect your hands and balance weight for slip-free handling - β€’ **Comfort Meets Control:** Textured polypropylene handle reduces hand fatigue during extended use - β€’ **Precision Curved Blade:** 5-inch semi-flexible design for effortless deboning across pork, beef, poultry, and fish ## Overview The ULTRASOURCE Boning Knife features a 5-inch curved, semi-flexible blade crafted from cryogenically treated high-carbon molybdenum steel for superior edge retention and rust resistance. Its ergonomic polypropylene handle with textured grip and safety bolsters ensures comfort and protection during professional-grade deboning tasks across various meats. ## Description Product description Meat Processors' Choice Cut with Confidence Razor-sharp boning knives from UltraSource are an excellent choice for professional chefs and discerning home cooks alike. Popular with industrial meat processors, butcher shops, grocery stores and meat markets. With a wide variety of blade lengths, shapes, and flexibilities, you can choose the right knife for any operation. The popular 5"- 6" cryogenically-treated blade lengths allow for precise cuts around bone that would more difficult with longer blades. Cryogenically treated Molybdenum steel Ergonomic & non-slip handle Excellent strength, lifespan, and edge retention. Curved Blade Boning Knives Straight Blade Boning Knives Review: Nice! - I use it for processing my own deer meat. It came to me very sharp and I occasionally resharpen it using my WorkSharp sander. The handle has a nice shape, no worries about my hand slipping. No comments about how long it holds a edge as even knives I’ve paid good money for all seem about the same. Review: SharpπŸ”ͺ - Great! Very Sharp πŸ”ͺ ## Features - Blade Design: 5-inch curved blade with semi-flexible construction offers middle-ground flexibility for comfortable deboning of multiple meat types including pork, beef, poultry, and fish - Superior Steel: Crafted from high-carbon molybdenum steel that is cryogenically treated, this blade resists rust and retains its edge longer than untreated steel. - Ergonomic Grip: The textured composite handle provides a comfortable and secure grip that minimizes hand fatigue, even with extended use. - Safety First: Front and rear bolsters on the blade and handle balance the weight and protect your hands from accidental slips. - Professional Grade: Butcher shops, meat markets and processors rely on this knife to get the job done efficiently and safely, day after day. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00JPEMJVA | | Best Sellers Rank | #197,753 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #105 in Boning Knives | | Blade Color | Stainless Steel | | Blade Edge | Plain | | Blade Length | 5 Inches | | Blade Material | Molybdenum steel | | Blade Material Type | Molybdenum steel | | BladeLength | 5 Inches | | Brand | ULTRASOURCE | | Brand Name | ULTRASOURCE | | Color | Orange | | Construction Type | Forged | | Customer Reviews | 4.6 out of 5 stars 645 Reviews | | Global Trade Identification Number | 00000004490302 | | Handle Material | Polypropylene | | Included Components | 449030 UltraKnife | | Is the item dishwasher safe? | No | | Item Length | 11 Inches | | Item Type Name | 449030 UltraKnife | | Item Weight | 0.31 Pounds | | Manufacturer | UltraSource | | Manufacturer Part Number | 449030 | | Material Type | Molybdenum steel, Polypropylene | | Model Number | 449030 | | Set Name | 5" Curved Semi-Flex | | Size | 5" | | UPC | 000004490302 840855103873 | | Unit Count | 1.0 Count | ## Product Details - **Blade Material:** Molybdenum steel - **Brand:** ULTRASOURCE - **Color:** Orange - **Handle Material:** Polypropylene - **Blade Edge:** Plain ## Images ![ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Image 1](https://m.media-amazon.com/images/I/51bIK0jiutL.jpg) ![ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Image 2](https://m.media-amazon.com/images/I/71dsxP8ONKL.jpg) ![ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Image 3](https://m.media-amazon.com/images/I/51SOKZE9xxL.jpg) ![ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Image 4](https://m.media-amazon.com/images/I/51Ydykrn5xL.jpg) ![ULTRASOURCE - Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Image 5](https://m.media-amazon.com/images/I/71gbwyGwPRL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice! *by L***P on December 31, 2025* I use it for processing my own deer meat. It came to me very sharp and I occasionally resharpen it using my WorkSharp sander. The handle has a nice shape, no worries about my hand slipping. No comments about how long it holds a edge as even knives I’ve paid good money for all seem about the same. ### ⭐⭐⭐⭐⭐ SharpπŸ”ͺ *by P***J on February 23, 2025* Great! Very Sharp πŸ”ͺ ### ⭐⭐⭐⭐ Solid, well built, sharp knife for the price, but... *by H***K on August 26, 2023* This is a very good quality, solid, well built, sharp knife for the price, but there are some flaws: 1. The knife is quite heavy for its size 2. The handle is very thick 3. The thickness of the handle make for an uncomfortable grip for me 4. The above 3 flaws combined would make for arm, wrist, hand fatigue My go to boning knife is a 6" Victorinox Fibrox Pro Curved Semi-Stiff boning knife which I usually use for beef, pork, and lamb butchering. I needed a shorter 5 inch boning knife for chicken and fish but couldn't find a 5" Victorinox Fibrox Pro Curved Semi-Stiff boning knife on amazon so I thought I would give this a try. Even though my 6" Victorinox is longer, the handle is thinner, the grip is more comfortable, and the knife is lighter and feel more balanced in the hand making for smoother faster cuts. I will say this knife is a great value for the price, is razor sharp and would make an excellent starter knife for a home cook or beginner in the kitchen, but someone with more cooking/butchering experience will probably require something lighter that provides a more comfortable grip. I will be returning this to look for something that provides a more comfortable weight, grip, and feel in my hand. ## Frequently Bought Together - UltraSource - 449030 Boning Knife, 5" Curved/Semi-Flexible Blade, Polypropylene Handle - Breaking Butcher Knife, 8 Inch Fluted Blade, Composite Handle, Orange - UltraSource - 449413 Butcher Knife, 10" Cimeter Blade Safety Orange --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/22740213-ultrasource-boning-knife-5-curved-semi-flexible-blade-polypropylene-handle](https://www.desertcart.com.ar/products/22740213-ultrasource-boning-knife-5-curved-semi-flexible-blade-polypropylene-handle) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-22*