A Standard Test for Sharpness
How sharp is the edge? That is both the most important question a sharpener can ask, and possibly the hardest to answer. There are tests like cutting paper or shaving hair that are often used to demonstrate sharpness, and they are helpful to a point, but they lack the precision and standardization required to truly answer the question. However, a precise and standardized testing method is available. It is achieved using the PT50 Series Sharpness Testers from Edge-On-Up.
Measure and Quantify
The PT50 Series of Edge-On-Up Sharpness Testers give the ability to measure and quantify the level of sharpness of any given edge. They work by measuring the force in grams required to cut through a standardized, calibrated medium. The result is a number that can be used to compare the relative sharpness of edges.
Industrial Precision and Quality
There are three models of PT50 Sharpness Testers. The Edge-On-Up Pro Edge Tester (PT50B) Is intended for professional sharpeners, woodworkers and knife enthusiasts looking for a serious method of evaluating and comparing edges.
The Edge-On-Up Pro Edge Tester Features:
- 10 measurements-per-second processor
- 5 Gram Resolution
- Portable Lightweight Design
- 3 Button Operation
- 2 AAA Batteries Included
Test Medium Included
The Pro Edge Tester includes a Knife Fulcrum and the New Aluminum Test Fixture.
The PT50B has a one year manufacturer's warranty.
| |
 |
 |
 |
| Model |
PT50A Industrial |
PT50B Professional |
PT50C Home |
| Resolution (Accuracy) |
1 Gram |
5 Gram |
25 Gram |
| Measurement Speed |
25 Per Second |
10 Per Second |
5 Per Second |
| Batteries |
2 AAA Batteries Included |
2 AAA Batteries Included |
2 AAA Batteries Included |
Test Clip Base
 |
Included |
- |
Included |
Test Clips
 |
25 Included |
- |
25 Included |
New Aluminum Test Fixture
 |
Included |
Included |
- |
Test Media
 |
Included |
Included |
- |
| Knife Fulcrum |
Included |
Included |
Included |
Q. What test method comes with the PT50B Professional Edge Tester?
A. The PT50B Professional Edge Tester comes with the Aluminum Test Fixture and the Test Media.
Q. I've received my Edge On Up Tester and don't see the Test Media. What should I do?
A. The Test Media is preloaded into the Aluminum Test Fixture. If you do not see a strand of media coming through one of the feed holes, slide the black rubber piece off of the bottom of the fixture. A role of Test Media should be inside.
Q. I've opened my New Edge On Up Tester and found a small empty box that says "Consumables." Should this box have something in it?
A. No. The box will be empty. It is included as a packaging spacer and has been labeled "Consumables" for customers to use as future storage.