Maximum Resolution

The PT50A  Industrial Edge Tester provides 1 gram resolution for users who want to know exactly how sharp an edge is. With an industrial strain sensor, heavy steel measurement platform, and both testing systems included, it's the most capable model in the PT50 series and the only one backed by a three-year warranty covering industrial and commercial use.

A Standard Test for Sharpness

How sharp is your 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. This machine is often called the BESS Tester.

Measure and Quantify

The PT50 Series of Edge-On-Up Sharpness Testers gives you 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. 

• Simply lower the cutting edge down until it cuts through the test line.
• Write down the results and compare to the sharpness chart.
• re-threading the test media takes about 3-5 seconds.
• Tare the tester and you are ready for the next test.

Testing before and after sharpening is a game changer.

Use the Sharpness Chart

Any result under 200 grams is "razor sharp" and you can check your edges against the included sharpness chart. Recommended numbers are listed for a large variety of applications.

The Sharpness Testers Anyone Can Use

There are three models of PT50 Sharpness Testers. The Edge-On-Up Industrial Edge Tester (PT50A) is the most precise. It is a crossover product with the industrial world, and of the three models of PT50 testers, the PT50A is the only one that is warranted for commercial/industrial use (3 years). 

The PT50A Edge-On-Up Industrial Edge Tester Features:

• 25 measurements-per-second processor
• Very Fine 1 Gram Resolution
• Maximum Load Rating of 3000 Grams
• Heavy Steel Measurement Platform
• Industrial Strain Sensor
• Portable Lightweight Design
• 3 Button Operation
• 2 AAA Batteries Included
• Instructions with sharpness chart.
• Knife Fulcrum with safety gel insert

Test Media Included

The New Aluminum Test Fixture arrives pre-loaded with the TM01 Test Media Canister (enough media for approximately 325 tests). The BESS Certified Test Media is the most accurate way to test sharpness.

25 Disposable Test Clips are included along with a separate clip base. These one-use Clips are not BESS rated but still provide an accurate test and offer more accessibility for a larger range of applications due to their thinner profile.

Sharpen Anywhere, Anytime

The PT50A features a heavy steel measurement platform and an industrial strain sensor. While it is rated for up to 3000 gram loads it will very accurately measure laboratory edges within a few grams. The included batteries last years and make this tester portable and accessible for any shop or kitchen. A backlit screen makes the results easy to see in any testing environment.

Accurate Testing

The PT50A Industrial Edge Tester is the most accurate tester we offer and we all love to use it here at Sharpening Supplies. The results are recorded with 25 tests-per-second which allows for a readout within one gram of force.

• The accurate sensors within the PT50A allow for testing multiple areas along the same edge for slicing applications or anywhere consistent sharpening matters.
• The relative sharpness of multiple edges can be evaluated and recorded for comparison using the included sharpness chart.
• Edges that you use, can easily be re-tested for routine maintenance.
• Before and after testing can help improve sharpening technique through precise evaluation.

Beat Your Test Score

Sometimes you just want to see how you did or where a knife lands on the BESS sharpness chart but now that you can compare test scores with others... this tester naturally lends itself to some friendly competition.

Practically speaking, once you reach a certain sharpness, you really can't make an edge look any shinier.          For those going for the sharpest edge possible, a sharpness tester is the only way to really see if you are improving your results. 

 How sharp will you go?

Specifications and What's Included With Each Model
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	-
Knife Fulcrum	Included	Included	Included