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<div id="desc">
<h3>A Standard Test for Sharpness</h3>
<p>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.</p>
<h3>Measure and Quantify</h3>
<p>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.</p>
<h3>Industrial Precision and Quality</h3>
<p>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.</p>
<p>The Edge-On-Up Pro Edge Tester Features:<br></p>
<ul>
<li>10 measurements-per-second processor</li>
<li>5 Gram Resolution</li>
<li>Portable Lightweight Design</li>
<li>3 Button Operation</li>
<li>2 AAA Batteries Included</li>
</ul>
<h3>Test Medium Included</h3>
<p>The Pro Edge Tester includes a <a href="/collections/edge-on-up/products/knife-fulcrum"><strong>Knife Fulcrum</strong></a> and the <a href="/products/aluminum-test-fixture"><strong>New Aluminum Test Fixture</strong></a>.</p>
<p>The PT50B has a one year manufacturer's warranty.</p>
<h3>A Comparison of the Edge On Up Testers and What's Included With Each</h3>
<table class="grid">
<thead>
<tr>
<th>Specifications and What's Included With Each Model</th>
<th class="image">
<a href="/products/edge-on-up-industrial-edge-tester"><img alt="Industrial Edge Tester" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50A-t.jpg?v=9226061901"></a><a></a>
</th>
<th class="image">
<a href="/collections/edge-on-up/products/edge-on-up-professional-edge-tester"><img alt="Professional Edge Tester" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50B-t.jpg?v=6508457750"></a><a></a>
</th>
<th class="image">
<a href="/collections/edge-on-up/products/edge-on-up-home-edge-tester"><img alt="Home Edge Tester" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50C-t.jpg?v=7938563042"></a><a></a>
</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Model</strong></td>
<td><a href="/products/edge-on-up-industrial-edge-tester">PT50A Industrial</a></td>
<td><a href="/collections/edge-on-up/products/edge-on-up-professional-edge-tester">PT50B Professional</a></td>
<td><a href="/collections/edge-on-up/products/edge-on-up-home-edge-tester">PT50C Home</a></td>
</tr>
<tr>
<td><strong>Resolution (Accuracy)</strong></td>
<td>1 Gram</td>
<td>5 Gram</td>
<td>25 Gram</td>
</tr>
<tr>
<td><strong>Measurement Speed</strong></td>
<td>25 Per Second</td>
<td>10 Per Second</td>
<td>5 Per Second</td>
</tr>
<tr>
<td><strong>Batteries</strong></td>
<td>2 AAA Batteries Included</td>
<td>2 AAA Batteries Included</td>
<td>2 AAA Batteries Included</td>
</tr>
<tr>
<td class="image"><a href="/collections/edge-on-up/products/clip-base"><strong>Test Clip Base</strong><br><img width="150" alt="Test Clip Base" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/DCB10-t.jpg?v=7091774358"></a></td>
<td>Included</td>
<td>-</td>
<td>Included</td>
</tr>
<tr>
<td class="image"><a href="/collections/edge-on-up/products/disposable-test-clip-100-pack"><strong>Test Clips</strong><br><img alt="Test Clips" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/DTC100-t.jpg?v=1205590684"></a></td>
<td>25 Included</td>
<td>-</td>
<td>25 Included</td>
</tr>
<tr>
<td class="image"><a href="/products/aluminum-test-fixture"><strong>Aluminum Test Fixture</strong><br><img alt="Aluminum Test Fixture" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/ATF10G-t.jpg?v=8568843981"></a></td>
<td>Included</td>
<td>Included</td>
<td>-</td>
</tr>
<tr>
<td class="image"><a href="/collections/edge-on-up/products/doublex-test-media-canister"><strong>Test Media</strong><br><img alt="Test Media" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/TM02-t.jpg?v=4622129829"></a></td>
<td>Included</td>
<td>Included</td>
<td>-</td>
</tr>
<tr>
<td class="image"><a href="/collections/edge-on-up/products/knife-fulcrum"><strong>Knife Fulcrum</strong><br><img alt="Knife Fulcrum" src="https://cdn.shopify.com/s/files/1/0769/9287/2750/files/KF10R-t.jpg?v=3900413041"></a></td>
<td>Included</td>
<td>Included</td>
<td>Included</td>
</tr>
</tbody>
</table>
<p> </p>
<iframe src="https://www.youtube.com/embed/gnPLi7GuqsE?rel=0" height="315" width="560" allowfullscreen="" allow="autoplay; encrypted-media" frameborder="0"></iframe>
</div>
<div id="faqs">
<p class="Question">Q. What test method comes with the PT50B Professional Edge Tester?</p>
<p class="Answer">A. The PT50B Professional Edge Tester comes with the <a href="/collections/edge-on-up/products/aluminum-test-fixture">Aluminum Test Fixture</a> and the <a href="/collections/edge-on-up/products/doublex-test-media-canister">Test Media</a>.</p>
<p class="Question">Q. I've received my Edge On Up Tester and don't see the Test Media. What should I do?</p>
<p class="Answer">A. The <a href="/collections/edge-on-up/products/doublex-test-media-canister">Test Media</a> is preloaded into the <a href="/collections/edge-on-up/products/aluminum-test-fixture">Aluminum Test Fixture</a>. 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.</p>
<p class="Question">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?</p>
<p class="Answer">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.</p>
<p class="Question">Q. Is this the BESS Tester?</p>
<p class="Answer">A. Yes, this is commonly called the BESS Tester. BESS is the measurement scale used by this knife edge tester.</p>
</div>
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