Collection boxes
- for dull blades
- special closure
- in 4 sizes
Art. no. USK12
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 %) | 15.88€ |
| from 50 pcs. (−6 %) | 15.39€ |
Automatic blade retraction | stainless steel housing | for food & pharma
The OLFA SK-12 is a safety knife made specifically for food production and pharma – industries with particularly high hygiene and safety requirements for the tools they use. The automatic blade retraction (safety level 1) pulls the blade back into the handle by itself after every cut as soon as the slider is released – this clearly reduces the risk of cut injuries in day-to-day work. The blade can be changed without tools in a few simple steps directly at the workstation. By simply repositioning the slider, the knife can also be used by right- and left-handed users, without the need for an additional model. The OLFA SK-12 is therefore suited to safety officers and production managers looking for a reliable safety knife for everyday use in food and pharmaceutical companies. More in the Safety knives overview.
Which materials is this knife made for — and where does it reach its limits?
You open sealed cartons at the adhesive tape – the defined cutting depth protects the goods underneath.
You open film, paper and woven sacks cleanly without damaging the bulk material.
You cut single- to triple-wall corrugated board in a controlled way without damaging the contents of the carton.
Not every safety knife is built the same – and you only notice it when it matters in everyday use. In the knife know-how section we show you at a glance how the OLFA SK-12 performs in the most important respects: from the safety mechanism and grip quality to blade performance. This lets you judge whether it suits your application. If you have questions about the choice, we are happy to advise you personally.
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.
Everything about the OLFA SK-12 in two compact PDFs: the product flyer summarises features and applications – the technical data sheet provides dimensions, blade specifications and safety information. Both are free to download.
Technical data, blade change instructions and safety notes – DIN A4
Download →The OLFA SK-12 is supplied with a K022 (trapezoid blade made of stainless steel, usable on both sides). The knife only takes this matching trapezoid blade – check compatibility when buying. More in the Overview of all trapezoid blades.
Alongside the OLFA SK-12 we carry other detectable safety knives with automatic blade retraction. Unlike the SK-12, the U19MDP, U010, the martor Profi 25 MDP and the H035MDP each use an aluminium or disposable housing – detectable, but not at the stainless steel level of the SK-12. They are suitable if there should be no blade change or if a different ergonomic concept is wanted.
Ergocut mini MDPautomatic blade retractionCutting depth 10 mmDisposable – no blade change3.99€ net
View U19MDP
VRex 103automatic blade retractionCutting depth 22 mmBlade change possible13.82€ net
View U010
Profi 25 MDPautomatic blade retractionCutting depth 21 mmBlade change possible15.05€ net
View UM120700
Kutter MDPconcealed bladeCutting depth 3.3 mmDisposable – no blade change3.38€ net
View H035MDPComplement the OLFA SK-12 with matching accessories: collection boxes for dull blades, lanyards as a safety cord, cutting rulers for precise cuts and holsters for safe storage.
Frequently asked questions about the OLFA SK-12 – we answer them here in detail. If you have further questions, we are happy to help you personally: To the contact form
The blade on the OLFA SK-12 is changed without tools: push the slider forwards approx. 0.5 cm until the hole in the blade is level with the marking, then fold the slider upwards and carefully slide the blade out. The K022 replacement blade can be used on both sides – simply turn it over or insert a new one and close the slider again.
Yes, the OLFA SK-12 is made entirely of stainless steel – blade, spring and housing. This makes it far more reliably detectable than safety knives with an aluminium or plastic housing, and it is suited specifically to food production and pharma.
Yes, the OLFA SK-12 can be used by right- and left-handed users. To do so, the slider has to be converted once; after that the knife can be operated with either hand.
The OLFA SK-12 achieves safety level 1: the blade retracts automatically into the handle as soon as the slider is released – this clearly reduces cut injuries compared with knives without automatic retraction.
OLFA CORPORATION – 2-11-8 Higashinakamoto – Higashinari-ku – Osaka 537-0021 – JapanThis 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.
