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The OLFA L-1 18mm Ratchet-Lock Heavy-Duty Utility Knife handles construction, manufacturing, and jobsite cutting with tool-free blade changes, and it's on sale now for $10.00, down from $12.49.
Categories : Rotary Cutting
SKU : CUT-ROT-542
The OLFA L-1 18mm Ratchet-Lock Heavy-Duty Utility Knife is the professional's choice for construction, manufacturing, and general jobsite cutting. Buy the OLFA L-1 online today for $10.00, marked down from $12.49 — real savings on a pro-grade knife.
Blade changes are tool-free: rotate the ratchet-lock wheel to release tension, slide the old blade out of the stainless-steel channel, and insert a fresh OLFA 18mm heavy-duty snap-off blade. If the blade slides during cuts, tighten the ratchet lock until it clicks firmly.
Turn the ratchet-lock wheel to extend the blade in precise segments and lock it at your desired depth. Extend one snap segment for packaging and drywall scoring, or more for thick insulation and foam.
Fits all standard OLFA 18mm snap-off heavy-duty blades, including LB and Silver series replacements.
At $10.00 — $2.49 off the $12.49 list — the L-1 undercuts the rubber-grip L-2 while sharing the same blade platform. Stack coupon BENCH10 for an extra 10% off and bundle with the L-2 or a blade pack to clear the $45 free-shipping threshold.
Ratchet-lock wheel locks the 18mm heavy-duty snap blade at exact cutting depths for clean jobsite cuts
Stainless-steel blade channel fully backs the blade for industrial-style construction and MRO cutting
Tool-free blade changes fit all OLFA 18mm heavy-duty blades, on sale at $10.00 — $2.49 below list
Model: L-1
Handle: Durable ABS, contoured grip
Blade Size: 18mm heavy-duty
Blade Type: Silver snap-off
Application: Construction, manufacturing, MRO
Product Type: Heavy-Duty Utility Knife
Blade Support: Stainless-steel channel
Locking Mechanism: Ratchet-lock wheel
Seller: Cutter's Bench
MPN: L-1
The L-1 shares its 18mm blade, ratchet lock, and stainless-steel channel with the L-2. Choose the L-1 for the same pro performance at $10.00; choose the L-2 if you want the anti-slip rubber grip.
$10.00 sale price vs $12.49 list, extra 10% off with coupon BENCH10, and free shipping over $45 — bundle with blades or the L-2 to maximize the deal.
Order the OLFA L-1 18mm Ratchet-Lock Utility Knife online at Cutter's Bench for $10.00 with free shipping on orders over $45.
Rotate the ratchet-lock wheel to release the blade, slide it out of the stainless-steel channel, and insert any OLFA 18mm snap-off heavy-duty blade — no tools needed.
Turn the ratchet-lock wheel to extend the blade in snap segments, lock it at the depth you need, and snap off worn segments to reset a sharp edge.
Make sure the ratchet-lock wheel is tightened firmly against the blade; the lock holds the 18mm blade steady when fully engaged.
Yes — it's on sale for $10.00 (compare at $12.49), and coupon code BENCH10 adds another 10% off.




Three years on the jobsite and still going strong. The ratchet lock never fails.
I've tried cheap hardware store knives for years and they always fall apart or the lock slips. This OLFA is on another level. The ratchet lock clicks into place with a satisfying snap and holds firm even when I'm leaning into a long plywood score. Blade changes are tool-free and take five seconds. I bought a second one for my truck.
We use these at our plant for cutting gaskets, conveyor belt scraps, and packaging. The 18mm blade is chunky enough for tough material and the handle survives drops onto concrete. Sometimes the blade segment snap requires pliers if it's a fresh blade, hence 4 stars.
Feels substantial without being heavy. The lock mechanism is much better than the slider on my old knife.
Cuts well and feels durable. Took me a week to get used to the ratchet lock versus a simple slide, and I still occasionally fumble it with gloves on. Once locked, though, it's rock solid.
Japanese steel, clean cuts, easy snapping. Nothing else to say.
The handle is big and the ratchet lever requires a lot of thumb pressure. My wife couldn't operate it comfortably. Build quality is fine, but it doesn't fit everyone.
I've bought the L-1 repeatedly since my apprenticeship. It's the only knife that survives being run over by a forklift, which I can unfortunately confirm from experience. The grip texture wears in nicely and the ratchet never loosens. Just buy it.
Does everything I ask of it — drywall, carpet, shrink wrap. Wish it came with more spare blades included, but the knife itself is flawless.
At ten bucks this outperforms knives twice the price. The ratchet lock gives me confidence when cutting overhead. Highly recommend for anyone in construction.
Orders over $45.00 ship free. Otherwise, shipping is $8.00.
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Address: 142 Bench Row, Suite 3, Portland, OR 97205, United States