Blade boxes
- for dull blades
- special closure
- in 4 sizes
Art. no. US11
At a glance
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 discount | net / pc. |
|---|---|
| from 20 pcs. (−3 %) | 9.92€ |
| from 50 pcs. (−6 %) | 9.62€ |
Cutting depth 36 mm | Metal housing | wide blade opening
The Tortoris Safe 11 is a safety level 1 safety knife with automatic blade retraction: the blade retracts as soon as the thumb releases the slider.
The housing is made of sturdy metal instead of ordinary plastic and is therefore considerably more durable in hard continuous use. The particularly ergonomic design with a double-sided thumb slider sits well in the hand and is smooth to operate – the knife is therefore designed for intensive use of more than 1,000 cuts per day.
Right- and left-handed users operate the Safe 11 without any conversion. It carries the GS mark for tested safety, the blade is changed without tools via a magnetic holder, and the wide blade opening at the front ensures reliable blade retraction even when adhesive tape sticks to it.
The Safe 11 is universally suited to packaging materials such as films, adhesive tape and strapping, but is designed in particular for cutting open big bags, where the long blade plays to its strengths. Safety knives overview
Which materials is this knife made for — and where does it reach its limits?
The Safe 11 cuts lids and flaps of thick-walled cartons and multi-layer corrugated board in one pass with its long 36 mm blade.
The long blade plunges deep enough into polystyrene and thick foam blocks to divide them in one pull.
The Safe 11 cuts rubber mats and profiles cleanly, without the material giving way.
Not every safety knife is built the same. With the Tortoris Safe 11, the sturdy metal housing, the long blade and the double-sided soft-grip slider above all determine its value in everyday use. Here you can see at a glance what sets the Safe 11 apart in intensive continuous use – and where its strengths really come into play.
Automatic blade retraction — the blade retracts by itself as soon as you release the handle, no need to push it back manually.
All safety levels explained →
Adjustable cutting depth: no.
much sturdier and longer-lasting than plastic, resistant to knocks and drops. Standard on professional safety knives for daily use.
All data on the Tortoris Safe 11 at a glance: the product flyer summarises features, blade options and applications compactly – free to download as a PDF.
Technical data, blade change instructions and safety notes – DIN A4
Download →Three long blades without snap-off segments are available for the Safe 11: smooth premium carbon steel for clean cuts, a serrated grind for a particularly long edge life and a stainless steel blade for hygienically sensitive areas. All can be changed without tools. Overview of all cutter knife blades
If you are looking for the same automatic safety with a shorter blade, the Tortoris Safe 10 is the right variant: almost identical in construction, but with a cutting depth of around 2 cm and additionally adjustable cutting depth. The same intuitive operation via the double-sided slider.
There are only a few long safety knives with automatic blade retraction. The well-known Martor Secunorm 540 and the identical-in-construction U002P are each operated via a raised, single-sided slider – very smooth, but only from one side. The Safe 11 is the only one in this segment with a double-sided slider. If you prefer a different design or a shorter blade, you will find suitable alternatives here.
Pro long4 cm cutting depthautomatic blade retractionBlade change possible13.00€ net
View U002P
Secunorm 5404 cm cutting depthautomatic blade retractionBlade change possible14.13€ net
View UM54000410
Safe 10automatic blade retraction2 cm cutting depthBlade change possible10.23€ net
View US10
VRex 103all parts made of metalautomatic blade retractionBlade change possible13.82€ net
View U010The Tortoris Safe 11 can be usefully complemented: a collection box for the safe disposal of dull blades, a lanyard for working without putting the knife down, a cutting ruler for precise straight cuts and a holster for quick access on the belt.
The most frequently asked questions about the Tortoris Safe 11 – from operation for left-handed users and the automatic blade retraction and safety level 1 to the right application in goods receiving. If your question is not answered here, our team will be happy to help you personally.
Yes. The Tortoris Safe 11 has a double-sided slider – the rubberised thumb slider sits on both sides of the housing. Right- and left-handed users operate the knife equally well, without any conversion or repositioning of the blade.
With the Safe 11 you extend the blade forward with the thumb slider and hold it during the cut. As soon as you release the slider, a spring pulls the blade back into the housing automatically – even if the knife falls. This means an open blade is never exposed. The wide blade gap at the front ensures that the retraction closes reliably even with adhesive tape stuck to it.
The Safe 11 is a level 1 safety knife: the blade extends actively for cutting and retracts automatically as soon as the slider is released. Level 1 is an industry classification for knives with automatic blade retraction – it significantly reduces the risk of injury compared with knives with a fixed blade, without limiting cutting performance.
The Safe 11 excels wherever more cutting depth is needed: when opening film sacks and big bags, when cutting up thick shipping cartons and octabins, and when cutting strapping. The long blade with up to 36 mm reaches material layers where short safety knives fail – ideal for intensive use in warehouse and logistics.
View all Tortoris products →This knife is a sharp working tool. Use only as intended. Keep out of the reach of children. Wear suitable protective gloves if necessary. Replace blades safely in accordance with the blade change instructions – do not make any improper modifications.
