--- product_id: 5391428 title: "18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits any 18mm Utility Knife" brand: "olfa" price: "75.75 DT" currency: TND in_stock: true reviews_count: 13 category: "Olfa" url: https://www.desertcart.tn/products/5391428-18mm-heavy-duty-utility-knife-replacement-blades-10-blades-l store_origin: TN region: Tunisia --- # 18mm razor-sharp precision 10 heavy-duty solid steel blades Fits any 18mm utility knife 18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits any 18mm Utility Knife **Brand:** olfa **Price:** 75.75 DT **Availability:** ✅ In Stock ## Summary > 🔪 Cut sharper, work smarter — never settle for dull edges! ## Quick Answers - **What is this?** 18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits any 18mm Utility Knife by olfa - **How much does it cost?** 75.75 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/5391428-18mm-heavy-duty-utility-knife-replacement-blades-10-blades-l) ## Best For - olfa enthusiasts ## Why This Product - Trusted olfa brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Seamlessly fits all 18mm utility knives, optimized for OLFA models for peak performance. - • **Versatile Cutting Power:** Engineered to slice through insulation, foam board, and heavy-duty materials with ease. - • **Trusted OLFA Quality & Safety:** Backed by the original snap-off blade inventor’s legacy of durability and user safety. - • **Bulk Pack for Continuous Workflow:** 10 solid, non-segmented blades ready to tackle thick materials without interruption. - • **Unmatched Sharpness for Precision Cuts:** Crafted from premium Japanese tool-grade steel for razor-edge accuracy that lasts longer. ## Overview OLFA’s 18mm Heavy Duty Utility Knife Replacement Blades deliver industrial-grade sharpness and durability with 10 solid steel blades per pack. Made from high-quality Japanese alloy steel, these precision blades fit any 18mm utility knife and excel at cutting thick materials like insulation and foam board. Trusted by professionals since 1956, OLFA ensures superior edge retention and safety, making these blades a must-have for contractors, craftsmen, and managers who demand flawless performance every time. ## Description Cut with Confidence OLFA invented the first snap-off blade & rotary cutters. Since 1956, OLFA has delivered unwavering quality in every product. Are OLFA blades the sharpest? OLFA brand blades are made with top quality materials, forged with technologies that stem from traditional sword-making. OLFA snap-off blades consistently test sharper than other blades. OLFA Ultra Sharp Black Blades are 25% sharper than standard silver blades. OLFA ENDURANCE rotary blades were independently tested and verified to cut 2X longer than standard rotary blades . OLFA's Commitment to Safety With hand-held cutting tools, quality weighs heavily on user safety. Our knife and handle design always has customer safety top of mind. Are OLFA blades the sharpest? OLFA brand blades are made with top quality materials, forged with technologies that stem from traditional sword-making. OLFA snap-off blades consistently test sharper than other blades. OLFA Ultra Sharp Black Blades are 25% sharper than standard silver blades. OLFA ENDURANCE rotary blades were independently tested and verified to cut 2X longer than standard rotary blades . OLFA's Commitment to Safety With hand-held cutting tools, quality weighs heavily on user safety. Our knife and handle design always has customer safety top of mind. Craft & Professional Products Visit the Store Craft & Professional Products Visit the Store Review: Super useful blades - These blades are the best! I find their flexibility to be immensely useful when flush cutting. Olfa if you read this please make these solid blades in the 25 mm size! Review: They last a long time - The solid blades are great! Very durable! The snap offs are good as well-when the blade tip becomes dull you just snap off the full part but if your not careful with how much pressure your using when your cutting they snap when and where you don’t want them to. I use both but mostly these solid blades because they’re more reliable ## Features - RAZOR SHARP 18mm PRECISION BLADES - These blades are made from high quality Japanese tool grade steel for unparalleled sharpness and superior edge retention. The long lasting precision of these blades allows you to work longer uninterrupted. - CONTAINS 10 HEAVY DUTY BLADES - Each refill pack has 10 solid steel blades. The non-segmented blades can be fully extended for cutting thicker materials. Be prepared for your next cutting task with these ultra-sharp utility knife blades. - COMPATIBLE WITH 18mm KNIVES - OLFA's L-SOL-10B steel blades are compatible with any 18mm precision/utility knife. However, these blades perform best when equipped with an 18mm OLFA knife. - CUTS A VARIETY OF MATERIALS - These replacement blades provide accurate and reliable performance when cutting thicker materials like insulation and foam board. Great for industrial use, contractors, construction, or other heavy duty jobs. - THE OLFA STANDARD - As the original inventor of the Snap-Off Knife, OLFA has maintained a standard of cutting excellence for our quality and durability. Pairing your OLFA 18mm Utility Knife with OLFA 18mm Blades will provide optimal results. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0006SJAU2 | | Best Sellers Rank | #230,314 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #304 in Knife Blades | | Blade Material | Alloy Steel | | Brand | OLFA | | Brand Name | OLFA | | Color | Silver | | Customer Reviews | 4.6 out of 5 stars 124 Reviews | | Global Trade Identification Number | 00091511600506 | | Handle Material | Alloy Steel | | Handle Type | Manual-Retractable | | Item Length | 18 Millimeters | | Manufacturer | World Kitchen - Home Improvement | | Manufacturer Part Number | 9009 | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | 9009 | | UPC | 091511600506 785533254136 | | Unit Count | 1.0 Count | ## Product Details - **Material:** Alloy Steel - **Brand:** OLFA - **Color:** Silver - **Item Length:** 18 Millimeters - **Handle Material:** Alloy Steel - **Blade Material:** Alloy Steel - **Handle Type:** Manual-Retractable - **Manufacturer:** World Kitchen - Home Improvement - **UPC:** 091511600506 785533254136 - **Global Trade Identification Number:** 00091511600506 ## Images ![18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits any 18mm Utility Knife - Image 1](https://m.media-amazon.com/images/I/41Bo5wNzB+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Super useful blades *by A***R on December 14, 2025* These blades are the best! I find their flexibility to be immensely useful when flush cutting. Olfa if you read this please make these solid blades in the 25 mm size! ### ⭐⭐⭐⭐⭐ They last a long time *by H***T on September 3, 2022* The solid blades are great! Very durable! The snap offs are good as well-when the blade tip becomes dull you just snap off the full part but if your not careful with how much pressure your using when your cutting they snap when and where you don’t want them to. I use both but mostly these solid blades because they’re more reliable ### ⭐⭐⭐⭐⭐ Excellent for removing silicone/butyl/caulking around/under fixtures in RV *by B***W on June 15, 2020* I reviewed the Olfa 5003 L-1 18mm Ratchet-Lock Heavy-Duty Utility Knife and mentioned this solid blade, but just realized I never reviewed the blade here. The knife with this blade is perfect for working on my RV. It is long, thin, and flexible, which is exactly what is needed to slide under a fixture (door, water heater, lamp, etc) to break the usual silicone/butyl seal. I was able to slide the blade over an inch deep when removing my rear door (the factory really spread a lot of silicone for that seal). Then, using some vinyl lockout wedges, I was able to pry the edges around the door frame up without ever scratching my fiberglass gelcoat. Highly recommended if you do work on your own RV (or boat)! ## Frequently Bought Together - OLFA 18mm Heavy Duty Utility Knife Replacement Blades, 10 Blades (L-SOL-10B) - Steel Razor Blade Cutter Replacement Blades, Fits any 18mm Utility Knife - OLFA 18mm Heavy-Duty Utility Knife (L-1) - Multi-Purpose Custom Cutting Depth Utility Knife w/Ergonomic Grip Handle & Snap-Off Blade, Replacement Blades: Any OLFA 18mm Blade - OLFA 18mm Heavy Duty Extended Reach Utility Knife (XL-2) - Multi-Purpose Custom Cutting Depth Precision Knife w/Non Slip Rubber Grip & Snap-Off Blade, Replacement Blades: Any OLFA 18mm Blade --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/5391428-18mm-heavy-duty-utility-knife-replacement-blades-10-blades-l](https://www.desertcart.tn/products/5391428-18mm-heavy-duty-utility-knife-replacement-blades-10-blades-l) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-11*