$20.00
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The OLFA SK-4 Semi-Automatic Self-Retracting Safety Knife delivers dual-edge protected cutting for cardboard and packaging at $10.00 (reg. $13.49) – buy online now and stack coupon BENCH10 for extra savings.
Categories : Utility Knives
SKU : CUT-UTI-631
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OLFA SK-4 Semi-Automatic Self-Retracting Safety Knife – a full-size spring-activated safety cutter with Dual-Edge Safety Blade, stainless-steel blade channel, and textured non-slip grip. Best for construction, MRO, and warehouse cutting. On sale: $10.00, down from $13.49, with coupon BENCH10 for an additional 10% off.
The spring-activated blade retracts the instant it lifts from the cutting surface – that's the safety feature working as designed. Keep steady contact while cutting, and the blade stays engaged; lift, and it snaps back instantly.
Flip the Dual-Edge blade to expose the fresh second edge or switch handedness – left-handed users get the same performance. The SK-4 uses OLFA SKB-2 compatible safety blades.
SK-4 is the full-size semi-automatic value option; the SK-9 adds a tape splitter, the SK-8 is fully automatic, and the SK-7 is compact. Choose SK-4 for the lowest-priced full-size retraction safety.
Cuts drywall facing, insulation wrap, cartons, and packaging on jobsites and in MRO shops.
$10.00 vs $13.49 compare-at. Coupon BENCH10 stacks 10% more savings; free shipping over $45.00.
Full-size semi-automatic retraction at the lowest OLFA full-size price – $10.00 vs $13.49
Dual-Edge blade flips for a fresh edge and left- or right-handed use – double the blade life per purchase
Textured non-slip grip and stainless blade channel – confident, protected MRO and jobsite cutting
Grip: Textured non-slip handle
Blade: Dual-Edge Safety Blade, flip design; SKB-2 compatible
Model: SK-4
Handedness: Ambidextrous (flip blade)
Product Type: Semi-Automatic Self-Retracting Safety Knife
Current Price: $10.00 USD (Compare-at $13.49)
Seller: Cutter's Bench
MPN: SK-4
The SK-4 retracts its dual-edge blade the instant it leaves the cut, protecting hands in construction, MRO, and warehouse settings.
$10.00 vs $13.49 compare-at. Coupon BENCH10 saves 10% more. Free shipping over $45.00.
SK-4: value full-size semi-auto. SK-9: adds tape splitter. SK-8: fully automatic. SK-7: compact. SK-14: stainless food-safe. Match the tool to your cutting risk.
That's the safety feature: the spring-activated blade retracts whenever it lifts from the cutting surface. Maintain contact with the material while cutting to keep the blade engaged.
Yes – the SK-4 uses OLFA SKB-2 safety blades, and the dual-edge flip design gives you two fresh edges per blade.
Flip the blade to the opposite position – the SK-4's ambidextrous design delivers identical performance for left- or right-handed cutting.
$10.00 at Cutter's Bench (reg. $13.49), plus coupon BENCH10 for an extra 10% off and free shipping on orders over $45.00.
Both are semi-automatic; the SK-9 adds a metal tape splitter while the SK-4 is the value-priced full-size option at $10.00.
The textured non-slip grip makes a real difference with sweaty or gloved hands. Cuts cardboard all day and the blade auto-retracts every time. Very pleased.
Nothing flashy, just a dependable cutter. Dual-edge blade doubles the working life and the retraction has never failed. Good price too.
Comfortable, safe, sharp. Exactly what I needed.
Cutting performance is legitimately good and the safety retraction is reliable. The handle shape is a bit plain compared to some competitors — functional but not memorable. For the sale price it's still a fine buy.
I've tried most of OLFA's safety knives and the SK-4 hits the sweet spot for cardboard-heavy work. The textured grip stays planted even when my gloves get slick in the rain, which my job demands. Blade changes are infrequent thanks to the dual-edge design, and the ambidextrous body means I can hand it to anyone on the crew. At $10 with a coupon stacked, it beat out knives costing twice as much in my side-by-side testing.
