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Safety knife martor Secumax 145

Art. no. UM145001

At a glance

  • Box cutter
  • maximum protection
  • without blade change
  • GS-certified
UM145001-Sicherheitsmesser-martor-Secumax-145-Schutzhaken-CURT-tools_1600
2.25€ net · excl. VAT

Prices in EUR, net – for business customers only. Shipping: €14 flat rate within Europe, free of charge from €300 goods value (Shipping costs, in German) · Delivery time on request

Quantity discountnet / pc.
from 20 pcs. (−3 %)2.18€
from 50 pcs. (−6 %)2.12€

Secumax 145 – BoxCutter with a particularly narrow protective hook

Concealed blade (level 3) | very narrow cutting channel | 3rd place in the BoxCutter test

Applications & cutting materials

The Secumax 145 shows its strengths on film, strapping, adhesive tape and light to medium cardboard. The deliberately narrow cutting channel ensures high safety but is not suitable for thick or bulky materials such as rubber, ropes or polystyrene.

For film, strapping and light cardboard

Strapping & adhesive tape — Safety knife martor Secumax 145 im Einsatz

Strapping & adhesive tape

Open PP and PET strapping, parcel tape and adhesive strips in a controlled way.

Film — Safety knife martor Secumax 145 im Einsatz

Film

Cut open stretch, shrink and packaging film cleanly and safely.

Kartonagen — Safety knife martor Secumax 145 im Einsatz

Cardboard boxes

Open corrugated cartons without touching the packed goods.

Particularly suitable
Cardboard – lids/flaps
Cardboard – lids/flaps
Stretch film
Stretch film
Adhesive tape
Adhesive tape
Strapping
Strapping
Suitable
Opening film/paper sacks
Opening film/paper sacks
Not suitable Polystyrene (EPS) · Rubber

Knife know-how

Level 3 safety knives offer the most consistent protection – the blade stays permanently concealed. The Secumax 145 implements this design in a particularly compact form and impressed in the BoxCutter test 2025 with top scores for safety and piercing behaviour. Here you can see at a glance what makes the 145 special – and where its limits lie.

Further features

Safety

Without snap-off segments
Continuous blade without predetermined breaking points, no risk of a segment breaking off uncontrolled.
Few mounting holes
Fewer blade mounting holes mean fewer predetermined breaking points under lateral force, and a lower risk of uncontrolled breakage.

Handle & ergonomics

Left- and right-handed
Can be used with either hand, with or without conversion depending on the model, equally suitable for left- and right-handed users.
Weight < 50 g
Feather-light, barely noticeable when carried all day, for example on a belt or in the hand. This model weighs 12 g.

Blade

Premium carbon steel
Refined alloy with even better edge retention, for particularly demanding continuous use.
Uncoated
Constant basic sharpness without coating wear, cost-efficient and proven. The most economical choice for standard applications.
High initial sharpness
Especially sharp from the first cut, ideal when maximum cutting performance is needed immediately.
Long edge life
Much longer service life until the next blade change than standard blades. Reduces change intervals and blade consumption in intensive use.

Special features

Eyelet
For attaching to a belt, carabiner or lanyard so the knife stays within easy reach.
Knife type: safety knife
Safety knives are designed for continuous professional use — usually with an automatic or manual blade guard that prevents cuts when the knife is not in use. The standard choice in logistics, retail and production.

Technical data

Safety level
Level 3 (highest category)
Handle material
GRP
Blade type
Carbon steel
Max. cutting depth (mm)
3.8
Blade change
None
Suitable for left-handed users
Yes, without conversion
Eyelet
Yes - large
Dimensions (L×W×H) mm
118 × 36 × 4
Weight (g)
12
Packaging unit
1 loose
Certificate
GS
Article number
UM145001
UM145001-Sicherheitsmesser-martor-Secumax-145-Schutzhaken-CURT-tools_1600
Dimensions: 118 × 36 × 4 mm — illustration is an example
Weight 12 g
Featherweight Pro Heavy
Size
Mini Standard Very large

Downloads & blade change

The product data sheet for the Secumax 145 brings together all technical data, safety features and areas of application – compactly as a PDF, free of charge and immediately available. This gives you the most important arguments for procurement and occupational safety at a glance.

UM145001 Technical data sheet

Technical data, blade change instructions and safety notes – DIN A4

Download →

Variants

If you would rather change the blade of a BoxCutter than replace the whole knife, the Secumax 350 is the right version: also a level 3 safety knife with a protective hook, but with tool-free blade change. This means the blade can easily be replaced when its sharpness declines.

Alternatives

The Secumax 145 was among the top 3 in the BoxCutter test 2025. Overall victory went to the Tortoris US53 with the lowest force required, closely followed by the best-value winner OLFA SK-15. If you want to change the blade, the CB100 is a strong alternative. Here you can see suitable safety knives with a concealed blade in direct comparison.

Accessories

Using the large eyelet, the Secumax 145 can be secured with a lanyard – so it stays within easy reach and does not get lost in the warehouse. A collection box ensures safe disposal of dull knives, a cutting ruler ensures precise cuts and a belt pouch ensures quick access in daily use.

Blade boxes

Blade boxes

  • for dull blades
  • special closure
  • in 4 sizes
Choose
Lanyards

Lanyards

  • “lanyard”
  • extra strong
  • up to 120 cm long
Choose
Cutting rulers

Cutting rulers

  • with steel edge
  • high quality
  • with finger guard
Choose
Belt pouches

Belt pouches

  • knife pouch
  • in 3 sizes
  • reinforced seams
Choose

Frequently asked questions

The most frequent questions about the Secumax 145: from the disposable principle without blade change and the narrow cutting channel to suitable materials and how it differs from the OLFA SK-15 and the Tortoris US53.

Why can the blade on the Secumax 145 not be changed?

The Secumax 145 is a disposable knife: the blade is firmly and safely fitted in the housing and cannot be removed. In return, both cutting edges can be used – when one side is dull, you turn the knife over and cut with the second edge. After that the entire knife is replaced.

How safe is the Secumax 145?

Very safe: the Secumax 145 is a level 3 safety knife with a concealed blade behind a protective hook. At only 3.8 mm, its cutting channel is one of the narrowest in the BoxCutter test 2025 – finger contact with the blade is not possible, and the protective hook remained undeformed in the load test.

For which materials is the Secumax 145 suitable?

The Secumax 145 is the right choice for films, stretch and shrink film, adhesive tape, strapping and cords, and for opening light corrugated cartons. Because of the deliberately narrow cutting channel, it is not suitable for thick or bulky materials such as rubber, ropes or polystyrene.

Does the Secumax 145 have a tape slitter?

Yes, a tape slitter is integrated in the cutting head of the Secumax 145. In practice, however, it can only be used to a limited extent because the cutting head quickly sinks into the material when slitting. If you slit adhesive tape regularly, you will be more comfortable with the OLFA SK-15 or the Tortoris US53.

What distinguishes the Secumax 145 from the OLFA SK-15 and the Tortoris US53?

All three are level 3 safety knives with a concealed blade. The Secumax 145 reached 3rd place in the test and stands out for a particularly narrow cutting channel and compact design. The Tortoris US53 came first as the overall winner with the lowest force required, and the OLFA SK-15 was the best-value winner.

Notes