OLFA Self-Retracting Safety Knives - Safety experts Rely on Them, So Should'nt You?

In fast-paced work environments where efficiency and safety go hand in hand, your tools should work as hard—and as smart—as you do. That’s where OLFA self-retracting safety knives come in. Trusted by safety professionals worldwide, these knives are designed with one mission in mind: accident prevention without compromising performance.

Engineered for Safety, Built for Efficiency

At the heart of OLFA’s safety innovation is the SK-4 Safety Knife—a game-changer in the world of cutting tools. This knife features an automated blade retraction mechanism that instantly pulls the blade back into the handle after each cut, without any additional input from the user. It’s simple, smart, and incredibly effective.

Here’s how it works:

• Just extend the blade and start your cut.
  

• The downward pressure and pulling force you apply keeps the blade engaged.
  

• As soon as the blade exits the cutting surface, the mechanism takes over—retracting the blade automatically.
  
  

No buttons to push. No awkward movements. Just smooth, seamless safety every time.

Designed for Everyone, Built for Anywhere

• Left /Right handed design — Whether you're right-handed or left-handed, the SK-4 has you covered.
  

• High-volume ready — Ideal for busy shipping and receiving departments, warehouses, packaging stations, and retail backrooms.
  

• Tool-free blade changes — Minimize downtime and keep things moving with quick and easy maintenance.
  

• Durable construction — Built to withstand the daily grind without breaking down or wearing out.
  
  

Why Professionals Trust Olfa?

From EHS managers and warehouse supervisors to frontline workers, OLFA’s reputation is built on more than just clever design. It's about peace of mind—knowing that every cut is safer, every tool more reliable, and every worker better protected.

“The OLFA SK-4 has helped us reduce blade-related incidents by over 40%. It’s now standard issue for our floor teams.”
— Operations Supervisor, National Logistics Company

Make the Switch Today 

Workplace injuries caused by cutting tools are among the most common—and preventable—accidents. Choosing the right safety knife is a simple, effective step toward a safer workspace.

The OLFA SK-4 isn’t just a knife—it’s your first line of defense.

Ready to protect your team and improve efficiency? Order your OLFA SK-4 Self-Retracting Safety Knife now from National Hardware.

Because when it comes to safety, there’s no cutting corners.