Self-Retracting Safety Knife (SK-4) | OLFA - Professional OLFA – Professional


  • Spring-activated, self-retracting blade
  • High-impact ABS handle
  • Textured blade slide with thumb-stop for precise control
  • Heavy-gauge stainless steel channel provides secure blade hold
  • Lanyard hole for tethering
  • Preloaded with SKB-2 Safety Blade
  • Accepts SKB-2, SKB-2S, RSKB, and HOB Safety Blades
  • Cutting depth up to .75-inch (19mm)


$10.65 Suggested MSRP
Where to Buy

Level One Safety Cutter

Safety experts rely on OLFA® cutting tools like this Self-Retracting Safety Knife for their enhanced level of protection. This Level One safety cutter features a textured, slip-resistant ergonomic handle that increases grip and control for safer use. A gently curved blade slider and spring blade that automatically retracts add to the knife’s safety. With a simple flip of the blade, this knife is easy to use for both right- and left-handed users. Use this knife for cutting light to heavy-duty materials such as cardboard, packaging, film, bagged goods, trimmings, shrink wrap, strapping, and tape. (SK-4, #9048)

Also available in 24 unit display – SK-4/24 (#1088215)

Cutting Specs

Cutting Depth: 0.75″ (19mm)

WARNING: California Proposition 65 Warning

 Download: SK-4 Blade Replacement/Left-Hand Use