Blade boxes
- for dull blades
- special closure
- in 4 sizes
Art. no. H037B
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 %) | 2.47€ |
| from 50 pcs. (−6 %) | 2.40€ |
Cutting depth 4.1 mm | plastic housing | tape slitter
The Klever Koncept KCJ-2B is a safety level 3 BoxCutter with a concealed blade behind a protective hook. Finger contact with the blade is not possible before, during or after the cut.
The housing is made of high-quality glass-fibre-reinforced plastic and, compared with other BoxCutters, is noticeably more voluminous and rounded – this makes handling particularly pleasant, especially for users with larger hands. The knife is therefore designed for light use of up to 100 cuts per day.
The Klever Koncept is suitable for left- and right-handed users without conversion. At 17 g it belongs to the lightest weight class in the comparison.
The Klever Koncept is designed for daily use in logistics and goods receiving and is particularly well suited to strapping, stretch film and adhesive tape.
The Klever Koncept is designed for strapping, films and adhesive tape – the most common materials in warehouses and goods receiving. The 4.1 mm cutting channel allows a somewhat wider material passage than narrower BoxCutters, but remains limited to thin to medium materials.
All values and verdicts from the CURT practical test 2025/2026 – where the Klever Koncept is strong and where other models perform better.
Adjustable cutting depth: no.
glass-fibre-reinforced plastic, considerably more break-resistant than ordinary plastic at a similar weight.
Technical data, blade change instructions and safety notes – DIN A4
Download →The Klever Koncept is the choice for users for whom grip comfort is particularly important. If, with the same safety level 3, you attach more importance to cutting performance, you will find suitable alternatives here.
Ultra Safe 53 redTest winneroutstanding bladeSingle-use – no blade change2.10€ net
View US53
SK-15 yellowBest-value winnermaximum safetySingle-use – no blade change2.00€ net
View H036
Secumax 145very narrow cutting channelextra high safetySingle-use – no blade change2.25€ net
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CB100Test winnerwith blade change8.99€ net
View HCB100A BoxCutter has a fixed blade that is completely enclosed by a protective hook. Unlike a cutter knife with an extending snap-off blade, the blade of a BoxCutter is permanently concealed – it can neither extend unintentionally nor touch fingers or the contents of the packaging. Cutting takes place only in the narrow cutting channel between the protective hook and the handle. This is the definition of safety level 3, the highest level of the industry classification.
No. The Klever Koncept is designed as a disposable knife – the blade is permanently built in. This completely eliminates the risks of injury during blade change. The blade is usable on both sides: when the first side is worn, simply turn it over and use the second cutting edge.
Very well suited to strapping, stretch film and adhesive tape. Well suited to PVC film, non-woven fabric and corrugated board. Not suitable for ropes, sacks and polystyrene.
The voluminous, rounded handle is the unique feature: it is noticeably wider than on comparable BoxCutters and sits particularly comfortably in the hand – especially for users with larger hands. In the practical test, the ergonomics were rated “very good”.
Klever Innovations, 7200 Grand Haven Rd Norton Shores, MI 49456, USAThis 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.
