Home /OLFA /Utility Knives /OLFA SL-1 18mm Basic Slide-Lock Heavy-Duty Utility Knife

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Utility Knives

OLFA SL-1 18mm Basic Slide-Lock Heavy-Duty Utility Knife

Name: OLFA SL-1 18mm Basic Slide-Lock Heavy-Duty Utility Knife
Brand: OLFA
SKU: CUT-UTI-642
Price: 8.99 USD
Availability: InStock
Rating: 4.3 (4 reviews)

4.3 (4)

$8.99

Buy the OLFA SL-1 18mm slide-lock heavy-duty utility knife for easy blade depth control at just $8.99 — the budget jobsite pick at Cutter's Bench.

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23 people are viewing this item. 16 sold today. Only 6 left in stock.

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Pair withOLFA SPC-1/40 9mm Basic Precision Utility Knife (Slide-Lock, Steel Pocket Clip/Blade Snapper, Blade Included)$2.99

Categories : Utility Knives

SKU : CUT-UTI-642

Description

OLFA SL-1 18mm Slide-Lock Utility Knife — $8.99 Everyday Low Price

The OLFA SL-1 18mm Basic Slide-Lock Utility Knife delivers quick blade depth control for construction and MRO cutting at just $8.99 at Cutter's Bench — the most affordable heavy-duty OLFA in the lineup, with coupon BENCH10 for an extra 10% off.

Slide-Lock Operation

The SL-1 uses a simple non-locking slide mechanism: push the slider to expose the blade and adjust depth instantly, with slide-lock activation holding your setting during use. This makes depth changes faster than ratchet-wheel designs.

What Blades Fit the SL-1

All standard 18mm OLFA snap-off blades fit the SL-1 channel, including silver heavy-duty and compatible black blades. Replacement blades are sold separately and snap off in segments for a fresh edge every time.

SL-1 vs PL-1

The SL-1 is the budget single-blade choice with a basic ABS handle and slide lock. The PL-1 costs more but stores up to six blades with an auto-load system. Choose the SL-1 for lowest price and simplicity; choose the PL-1 for high-volume cutting.

Specifications

Brand: OLFA
Model: SL-1
Blade size: 18mm heavy-duty silver snap-off
Handle: Durable ABS with lanyard hole
Lock: Slide-lock activation
Blade change: Tool-free
Application: Construction & MRO

Affordable Value

At $8.99 with no compare-at markup, the SL-1 is the cheapest entry into genuine OLFA heavy-duty cutting. Apply coupon BENCH10 and pair with blade packs to reach $45 free shipping.

Features

Slide-lock activation for fast, easy blade depth control on any cutting task
18mm heavy-duty snap-off blade in a durable ABS handle with lanyard hole for jobsite carry
Only $8.99 — the most affordable OLFA heavy-duty utility knife, plus 10% off with coupon BENCH10
Model: SL-1
Handle: Durable ABS with Lanyard Hole
Blade Size: 18mm Heavy-Duty
Blade Type: Silver Snap-Off
Application: Construction & MRO
Blade Change: Tool-Free
Product Type: Slide-Lock Utility Knife
Locking Mechanism: Slide-Lock Activation
Seller: Cutter's Bench
MPN: SL-1

Product Details

OLFA SL-1: Budget-Friendly Heavy-Duty Cutting

The SL-1 keeps it simple: a durable ABS handle, 18mm heavy-duty snap-off blade, and instant slide-lock depth control — all at $8.99. It's the cheapest way to add genuine OLFA quality to your tool belt.

When to Choose the SL-1

You want the lowest price on a dependable 18mm knife
You prefer quick slide adjustments over ratchet clicks
You need a lightweight backup knife with lanyard-hole carry

Blade Compatibility

Use any standard 18mm OLFA snap-off blade; stock up on multipacks to keep fresh edges on hand.

Deal Value

Apply coupon BENCH10 at checkout for 10% off, and bundle blades to qualify for free shipping over $45.

Frequently Asked Questions

Where can I buy the OLFA SL-1 online?

Cutter's Bench sells the SL-1 online for $8.99 with free shipping on orders over $45.

What blades fit the OLFA SL-1?

All standard 18mm OLFA snap-off blades fit the SL-1, including heavy-duty silver and black blade variants.

How much does the OLFA SL-1 cost?

Current price is $8.99 — the most affordable OLFA heavy-duty knife. Use coupon BENCH10 for an extra 10% discount.

What is the difference between the OLFA SL-1 and PL-1?

The SL-1 is a basic slide-lock single-blade knife at a lower price; the PL-1 adds an auto-load system storing up to six blades for high-volume cutting.

Are there deals or promotions on the SL-1?

Yes — the $8.99 everyday price is already the best deal, and coupon BENCH10 stacks an additional 10% savings at checkout.

Customer Reviews

4

5.0

d*****a

Cheap and cheerful

For nine bucks this knife punches way above its weight. The slide lock is smooth and holds the blade secure. Bought three — one for the truck, the toolbox, and the kitchen drawer.

4.0

n*f

Verified

Great budget option

Simple design that just works. The slider makes adjusting blade depth easy with one hand. Plastic body won't survive being run over, but I'm not paying $8.99 for that expectation.

5.0

p*f

My glovebox knife

This lives in my car for random jobs — opening packages, trimming weather stripping, cutting twine. Lightweight but the blade is classic OLFA sharp. Can't beat it for the price.

3.0

o***p

Verified

Fine for light duty

Handles cardboard and light cutting fine. The slide lock loosened up after a couple months of heavy use, so I'd say it's more a homeowner knife than a jobsite knife. Decent value though.