OUR WORLD DEBUT. FOR SPECIAL DEMANDS. A long bladed safety knife? This has been a contradiction of terms for a very long time. Until now. The SECUNORM 380 is the first safety knife worldwide featuring automatic blade retraction AND a blade extension length of almost 8 cm. If you are looking for a low risk alternative to the usual fixed blade cutter, here is your answer. As an additional safety feature, we've included a transportation lock, to disable any unintended blade activity.