# What are the utility knives with the largest blade size for extensive cutting tasks? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the utility knives with the largest blade size for extensive cutting tasks?

## Products

### OLFA MXP-L 18mm Die-Cast Aluminum Handle Ratchet Knife
```yaml
product: olfa-mxp-l-18mm-die-cast-aluminum-handle-ratchet-knife
brand: OLFA
price_gbp: 13.07
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 1
retractable: false
handle_material: Die-cast aluminum with rubber grip
locking_mechanism: Brass ratchet-wheel lock
```

- **Price:** £13.07 [^1]
- **Summary:** 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 For:** This 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.
- **Additional Sources:** [^2], [^3]

### OLFA XL-2 18mm Extended Reach Utility Knife
```yaml
product: olfa-xl-2-18mm-extended-reach-utility-knife
brand: OLFA
price_gbp: 21.03
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 1
handle_material: ABS
locking_mechanism: Ratchet-lock wheel
```

- **Price:** £21.03 [^4]
- **Summary:** 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 For:** This 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.

### OLFA LA-X 1072198
```yaml
product: olfa-la-x-1072198
brand: OLFA
price_gbp: 7.45
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 1
retractable: true
blade_length: 3.25 in
handle_material: Fiberglass-reinforced with rubber grip
storage_capacity: Break off 8
locking_mechanism: Automatic blade lock
```

- **Price:** £7.45 [^5]
- **Summary:** 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 For:** This 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.
- **Additional Sources:** [^6], [^7]

### Milwaukee FASTBACK Folding Utility Knife 48-22-1901
```yaml
product: milwaukee-fastback-folding-utility-knife-48-22-1901
brand: Milwaukee
price_gbp: 11.05
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 5
retractable: true
blade_length: 2 in
handle_material: Aluminum
locking_mechanism: Press and flip
```

- **Price:** £11.05 [^8]
- **Summary:** 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 For:** This 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.
- **Additional Sources:** [^9], [^10]

### LENOX Utility Knife Quick-Change
```yaml
product: lenox-utility-knife-quick-change
brand: LENOX
price_gbp: 14.5
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 3
retractable: true
handle_material: Aluminum
storage_capacity: 5 blades
locking_mechanism: Quick blade release
```

- **Price:** £14.5 [^11]
- **Summary:** 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 For:** Its 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.
- **Additional Sources:** [^12], [^13]

### Milwaukee FASTBACK 6-in-1 Folding Utility Knife 48-22-1505
```yaml
product: milwaukee-fastback-6-in-1-folding-utility-knife-48-22-1505
brand: Milwaukee
price_gbp: 16.21
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
retractable: true
blade_length: 2.4 in
handle_material: Steel
storage_capacity: 1 blade
```

- **Price:** £16.21 [^14]
- **Summary:** 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 For:** With 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.

### OLFA PL-1 18mm Pro-Load Multi-Blade Utility Knife with Auto-Load
```yaml
product: olfa-pl-1-18mm-pro-load-multi-blade-utility-knife-with-auto-load
brand: OLFA
price_gbp: 16.81
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
blade_count: 6
blade_length: 18mm
handle_material: fiberglass-reinforced handle
storage_capacity: 5 additional blades
locking_mechanism: auto-lock blade slide and ratchet blade lock
```

- **Price:** £16.81 [^15]
- **Summary:** 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 For:** This 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.
- **Additional Sources:** [^16], [^17]

---
## References & Sources
[^1]: OLFA Products, accessed 2026-09-13. https://olfaproducts.com/products/18mm-mxp-l-die-cast-aluminum-handle-ratchet-knife
[^2]: Global Industrial, accessed 2026-09-13. https://www.globalindustrial.com/p/18mm-aluminum-rubber-grip-ratchet-ratchet-wheel-utility-knife
[^3]: Zoro, accessed 2026-09-13. https://www.zoro.com/olfa-olfa-mxp-l-18mm-aluminum-rubber-grip-ratchet-ratchet-wheel-utility-knife-1135529/i/G508664657/
[^4]: OLFA, accessed 2026-09-13. https://olfa.com/products/18mm-xl-2-extended-reach-utility-knife
[^5]: Panther East, accessed 2026-09-13. https://www.panthereast.com/18mm-la-x-utility-knife-1072198-olfa.html
[^6]: OLFA Products, accessed 2026-09-13. https://olfaproducts.com/products/olfa-la-x-design-series-auto-lock-cutter-1
[^7]: National Supply Network, accessed 2026-09-13. https://www.nationalsupplynetwork.com/olfa-n-a-dba-world-kitchen-llc-b1913493
[^8]: Sprinkler Warehouse, accessed 2026-09-13. https://www.sprinklerwarehouse.com/milwaukee-fastback-compact-folding-utility-knife-48-22-1901
[^9]: Great Lakes Power Tools, accessed 2026-09-13. https://greatlakespowertools.com/milwaukee-48-22-1901-fastback-compact-folding-utility-knife/
[^10]: Butler Supply, accessed 2026-09-13. https://www.butlersupply.com/milwaukee-tool-48-22-1901-72799-28
[^11]: AF Supply, accessed 2026-09-13. https://www.afsupply.com/lenox-20353ssrk1-utility-ssrk1-retractable-knife.html
[^12]: McCoy's Building Supply, accessed 2026-09-13. https://www.mccoys.com/shop/p/8393951-052303-31/lenox-20353ssrk1-utility-knife-titanium-blade-straight-handle-white-handle
[^13]: Cobalt Industrial, accessed 2026-09-13. https://cobaltindustrial.ca/EN-US/products/lenox-20353ssrk1-lenox-gold-quick-change-retractable-utility-knife-20353ssrk1
[^14]: Lighting Warehouse, accessed 2026-09-13. https://www.lightingwarehouse.com/milwaukee-fastback-6in1-folding-utility-knife-48-22-1505
[^15]: OLFA, accessed 2026-09-13. https://olfa.com/products/18mm-pl-1-multi-blade-auto-load-utility-knife
[^16]: OlfaProducts, accessed 2026-09-13. https://olfaproducts.com/products/olfa-pl-1-pro-load-multi-blade-cutter-1
[^17]: AAA Industrial Supply, accessed 2026-09-13. https://aaaindustrialsupply.com/products/olfa-cutter-pro-load-multi-blade-pl-1-model-5021-18mm