Description
The Martor Secumax 350 safety knife stands out for safely cutting plastic strapping, double-wall cardboard boxes and, thanks to its guide, also very thin plastic film or paper (see video below). It’s a real multi-talent, with an innovative blade change.
Weighing just 37 grams, this cutter is a lightweight in its class.
It’s supplied with the Martor 3550.20 blade, dual-function (blade and tab) and double-edged to extend its life.
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Dual-function, dual-use blades

Each blade can be used twice — just flip it over. And at the same time it is dual-function:
- The Martor 3550.20 blade cuts plastic strapping and double-wall cardboard boxes.
- The top tab cuts sealing tape.
Concealed blade for maximum safety
The Secumax 350 keeps its blade concealed so you can work with maximum safety. It’s impossible to cut yourself.
Spare blade in the handle
The spare blade stays hidden; to reach it, just open the top of the handle to release the head’s locking mechanism when replacing the blade.
Featherweight
At just 37 grams, it’s a true featherweight.
Left-hand friendly
The Martor Secumax 350 works equally well in the right or left hand, so it’s left-hand friendly.
Comfort comes from the arched outer edges, the pleasant soft grip and the notches on the handle.
Video: Martor Secumax 350 safety knife
Martor Secumax 350 Safety Knife — specifications
– Easy blade change.
– Ergonomic handle with a soft grip.
– Spare blade hidden in the handle.
– TÜV certified.
– In an individual cardboard box.
Training video: Martor Secumax 350 safety knife
In the following video you’ll see the main features of the Martor Secumax 350 explained step by step so you can learn to use it:
Replacement blades for the Martor Secumax 350 cutter
At Cuchillalia.com you can restock the blades for this excellent safety knife. Add one of the compatible blades to your cart and extend your cutter’s life — in handy dispensers of 10.
Other Martor safety knives
If this safety knife doesn’t suit your needs, we have alternatives. Martor offers a broad catalogue of safety cutting tools, including these:
























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