About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

PinPro
Insulation knife

The insulation knife from PinPro is a high-quality tool that has been specially developed for use in drywall construction. The sharp special blade enables precise cuts, preventing moisture and cold bridges between the insulation materials. The finger guard on the handle also makes the insulation knife efficient and safe to use. A free case and a safety strap ensure that the knife is always to hand and won’t get lost. The knife is ergonomic and robust with a 2-component handle that is optimized for two-handed use . The use of sturdy, non-slip plastic makes it virtually impossible to slip. With an overall length of 42 cm and a double blade of 28 cm, it is the ideal size. The retailer offers a satisfaction guarantee and a 30-day right of return. This means that customers can be sure that they are getting a high-quality and reliable tool that meets their requirements.

Advantages

✅ Sharp double blade
✅ Storage pouch with belt loop
✅ Ergonomic handle
✅ 30-day right of return

Disadvantages

❌ No customer hotline or e-mail address

The first impression

Packaging and labeling

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be ensured.

CriterionRemarkScore achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingUnnecessary packaging waste was largely avoided, items were packed compactly90 points
MiscellaneousPackaging appropriate to the product, easy to open90 points
Total 93 points
Weighting: 10%
*The maximum score is 100 points
The shipping carton

The PinPro insulation knife was delivered in a typical Amazon box. The box was undamaged and easy to open.The product itself was packed in a plastic bag. This would not have been absolutely necessary, but it protects against dirt and damage. In this case, the product was fully protected and the insulation knife was therefore in perfect condition.
The product packaging is not fully recyclable.
The insulation knife makes a very good impression at first glance.

After unpacking

Package contents and instructions

ℹ️ Most people’s first impression after unpacking is immediately memorable. Are the contents of the package complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Package contents & scopeInsulation knife, storage bag, banderole100 points
Instructions for usePictograms with warning and mandatory signs on banderole100 points
Contact informationCan be found on the banderole, no hotline and e-mail address70 points
Total90 points
Weighting: 10%
*The maximum score is 100 points

After unpacking, you will find the insulation knife, a storage bag and the banderole on the table. The warning and mandatory signs were marked with pictograms on the banderole. There was also contact information, unfortunately without a hotline or e-mail address. These can be found on the Amazon page. Overall, the product packaging is very well thought-out and customer-friendly .

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the product processing. How high quality are the materials used? Is the look and feel satisfactory?

CriterionRemarkScore achieved*
Visual appearanceHigh-quality materials, simple design100 points
ProcessingVery good, no defects100 points
StabilityStable100 points
Sustainability of the productGood quality means a long service life can be expected100 points
MiscellaneousPractical storage bag made of sturdy fabric100 points
Total100 points
Weighting: 20%
*The maximum score is 100 points
The two sides of the knife

The storage bag is made of sturdy, black plastic fabric. It is the right size for the insulation knife. The opening is at the top and the knife is held in place with a Velcro fastener that runs over the handle of the knife. The case also has a belt loop.
The insulation knife itself has an ergonomically shaped handle with finger protection and a double-sided saw blade. To ensure that the product sits comfortably and securely in the hand, it is covered with a sturdy, non-slip plastic. Due to the good workmanship, we assume a correspondingly long service life.
If the customer is not satisfied with the product, they also receive a 30-day money-back guarantee.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test is the most relevant and therefore the most important. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkScore achieved*
Storage bagVery useful100 points
HandleVery comfortable and non-slip in the hand100 points
Cutting precisionVery straight cuts.100 points
Cutting processFast cutting without high effort100 points
Sectional viewSmooth cut surface100 points
Total100 points
Weighting: 40%
*The maximum score is 100 points

We really enjoyed testing the PinPro insulation knife .
It fits very well in the hand and fully fulfills its purpose. We particularly like the protective cover with belt loop supplied. The knife is very good for cutting insulating wool, but can also be used to cut rigid foam boards. Even for a woman, the knife fits very well and securely in the hand. The double blade means you always have the right knife for the job. All in all, we can recommend the PinPro insulation knife for both hobby craftsmen and professionals.

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we look at how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also examine consumer ratings and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioAppropriate90 points
Rating cutNot rated, as there are still too few customer reviews
Total90 points
Weighting: 20%
*The maximum score is 100 points

Prices of up to €17.50 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €13.95. The PinPro insulation knife is currently in the upper price segment with a price of €16.97. The price ratio is reasonable for the quality and scope of the product.

Overall result

WeightingScore achieved*
1. packaging & labeling10%93 points
2. package contents & instructions10%90 points
3. product processing & appearance20%100 points
4. in the practical test40%100 points
5. price/performance & consumer ratings20%90 points
Total95 points
*The maximum score is 100 points
Insulation knife
of the brand
PinPro
achieved
95
Points in our test and therefore passed. The test was carried out in the test period
03/23
and is stored in our database under the licence number
230312005
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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