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.
Designed for the Home User
There are three models of PT50 Sharpness Testers. The Edge-On-Up Home Edge Tester (PT50C) Is intended for the home user or hobbyist looking for a reliable way to distinguish between a well sharpened edge and a poorly sharpened one, and everything in between.
The Home Edge Tester Features:
- 5 measurements-per-second processor
- 25 Gram Resolution
- Portable Lightweight Design
- 3 Button Operation
- 25 Disposable Test Clips Included
- 2 AAA Batteries Included
Test Medium Included
The Home Edge Tester includes the Disposable Clip System (Test clips have not yet received full BESS certification).
The PT50C 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 |
Aluminum Test Fixture
 |
Included |
Included |
- |
Test Media
 |
Included |
Included |
- |
| Fulcrum |
Included |
Included |
Included |
Q. What test method comes with the PT50C Home Edge Tester?
A. The PT50C Home Edge Tester comes with a 25 count package of the Disposable Test Clips and the Clip Base.
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.