MORE SUSTAINABILITY FOR Cutting TASKS? TRY IT YOURSELF. The SECUMAX 350 SE is our sustainable all-rounder. The black handle is made of 98% recycled plastic. The interchangeable 2-in1 blade head also gives the knife an extended service life. It cuts all common materials from film and plastic strapping band through to 2-ply cardboard. The concealed blade protects users as well as packaged goods. It can also easily split adhesive tape.