What are the utility knives with the largest blade size for extensive cutting tasks?
This page compares 7 utility knives with verified specifications and prices. Top options include OLFA MXP-L 18mm Die-Cast Aluminum Handle Ratchet Knife, OLFA XL-2 18mm Extended Reach Utility Knife, OLFA LA-X 1072198. Prices range from £7 to £21. All data is sourced from manufacturer documentation and specialist retailers.
| Product ⇅ | Price ⇅ | Blade Count (piece) ⇅ | Blade Length (inch) ⇅ | Handle Material ⇅ | Locking Mechanism ⇅ | Retractable ⇅ | Storage Capacity (piece) ⇅ |
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OLFA MXP-L 18mm Die-Cast Aluminum Handle Ratchet Knife
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£13.07 ≈ | 1 | — | Die-cast aluminum with rubber grip | Brass ratchet-wheel lock | ✗ | — |
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The OLFA MXP-L is a heavy-duty 18mm snap-off utility knife with a durable die-cast aluminum handle, anti-slip rubber grip, stainless-steel blade channel, and tool-free blade changes. Its ratchet-wheel lock and preloaded ultra-sharp black blade suit professionals, tradespeople, and serious DIY users handling cardboard, carpet, insulation, and other tough materials. ★ Ideal forThis knife suits extensive cutting tasks because it uses an 18mm blade, the largest common OLFA snap-off size, plus a rigid aluminum handle, stainless-steel support channel, and ratchet-wheel lock for controlled cutting.
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OLFA XL-2 18mm Extended Reach Utility Knife
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£21.03 ≈ | 1 | — | ABS | Ratchet-lock wheel | — | — |
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The OLFA XL-2 is a heavy-duty 18mm snap-off utility knife with an extended stainless-steel blade channel that adds over 6in of reach. Its durable ABS handle, ratchet-lock wheel, preloaded silver blade, and tool-free blade change suit construction, automotive, and other hard-to-reach cutting tasks. ★ Ideal forThis product suits extensive cutting tasks because its 18mm blade is among the largest common utility-knife sizes and its extended channel adds over 6in of reach for controlled cutting at a safer distance. |
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OLFA LA-X 1072198
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£7.45 ≈ | 1 | 3.25 in | Fiberglass-reinforced with rubber grip | Automatic blade lock | ✓ | Break off 8 |
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The OLFA LA-X 1072198 is a heavy-duty 18mm snap-off utility knife with a fiberglass-reinforced, rubber-grip handle and automatic blade lock. It includes an ultra-sharp black snap-off blade, stainless steel blade channel, tool-free blade changes, and a built-in metal pick, making it suitable for construction, flooring, drywall, and other demanding cutting tasks. ★ Ideal forThis model suits extensive cutting tasks because its 3.25 in blade is longer than many utility-knife blades, while the 18mm snap-off design provides up to 8 fresh cutting sections and the retractable auto-lock slider enables controlled cutting depth.
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Milwaukee FASTBACK Folding Utility Knife 48-22-1901
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£11.05 ≈ | 5 | 2 in | Aluminum | Press and flip | ✓ | — |
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The Milwaukee FASTBACK 48-22-1901 is an all-metal folding utility knife with a 2 in retractable blade and one-handed press-and-flip operation. It includes five blades, tool-free blade changes, a gut hook, wire stripper, and belt clip, making it suited to tradespeople and repetitive jobsite cutting. ★ Ideal forThis model suits extensive cutting tasks because its 2 in blade is relatively large for a utility knife, while the retractable design, five included blades, tool-free changes, and one-handed press-and-flip operation support repeated cutting.
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LENOX Utility Knife Quick-Change
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£14.50 ≈ | 3 | — | Aluminum | Quick blade release | ✓ | 5 blades |
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The LENOX Quick-Change Utility Knife has a retractable aluminum handle, a titanium-coated stainless steel nose, and a quick blade release for changing or rotating blades without opening the handle. It includes 3 blades and stores up to 5 blades internally, making it suitable for contractors, tradespeople, and frequent cutting tasks. ★ Ideal forIts retractable design, 3 included blades, and 5-blade internal storage make it suitable for extensive cutting tasks, although a blade length specification was not available.
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Milwaukee FASTBACK 6-in-1 Folding Utility Knife 48-22-1505
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£16.21 ≈ | — | 2.4 in | Steel | — | ✓ | 1 blade |
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This multifunction folding utility knife has a 2.4 in blade, tool-free blade changes, a wire stripper, folding screwdriver, bottle opener, and reversible bit holder. It suits tradespeople, installers, and repair workers who want several jobsite functions in one compact tool. ★ Ideal forWith its 2.4 in blade and scoring-focused blade holder, this knife is suited to extensive cutting tasks requiring a relatively large utility-knife blade while also providing quick blade changes and extra storage for one replacement blade.
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OLFA PL-1 18mm Pro-Load Multi-Blade Utility Knife with Auto-Load
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£16.81 ≈ | 6 | 18mm | fiberglass-reinforced handle | auto-lock blade slide and ratchet blade lock | — | 5 additional blades |
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The OLFA PL-1 is a heavy-duty 18mm utility knife with an auto-load system, tool-free blade changes, and storage for five replacement blades. Its reinforced handle and multiple locking features suit contractors and tradespeople handling continuous cutting tasks. ★ Ideal forThis knife suits extensive cutting tasks because its 18mm blade is supported by an auto-load system, stores five additional blades, and provides up to 40 fresh cutting edges.
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