<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>Designed for the Home User</h3> <p>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.</p> <p>The Home Edge Tester Features:<br> </p> <ul> <li>5 measurements-per-second processor</li> <li>25 Gram Resolution</li> <li>Portable Lightweight Design</li> <li>3 Button Operation</li> <li>25 Disposable Test Clips Included</li> <li>2 AAA Batteries Included</li> </ul> <h3>Test Medium Included</h3> <p>The Home Edge Tester includes the <a href="/collections/edge-on-up/products/disposable-test-clip-100-pack"><strong>Disposable Clip System</strong></a> (Test clips have not yet received full BESS certification).</p> <p>The PT50C 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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50A-t.jpg?v=4700076044" alt="Industrial Edge Tester"></a><a></a> </th> <th class="image"> <a href="/collections/edge-on-up/products/edge-on-up-professional-edge-tester"><img src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50B-t.jpg?v=2778222214" alt="Professional Edge Tester"></a><a></a> </th> <th class="image"> <a href="/collections/edge-on-up/products/edge-on-up-home-edge-tester"><img src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/PT50C-t.jpg?v=1398775016" alt="Home Edge Tester"></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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/DCB10-t.jpg?v=7519879733" alt="Test Clip Base" width="150"></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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/DTC100-t.jpg?v=8092196846" alt="Test Clips"></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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/ATF10G-t.jpg?v=7447900056" alt="Aluminum Test Fixture"></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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/TM02-t.jpg?v=7637896327" alt="Test Media"></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 src="//cdn.shopify.com/s/files/1/0769/9287/2750/files/KF10R-t.jpg?v=2183185675" alt="Knife Fulcrum"></a></td> <td>Included</td> <td>Included</td> <td>Included</td> </tr> </tbody> </table> <p> </p> <iframe width="560" height="315" src="https://www.youtube.com/embed/gnPLi7GuqsE?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen=""></iframe> </div> <div id="faqs"> <p class="Question">Q. What test method comes with the PT50C Home Edge Tester?</p> <p class="Answer">A. The PT50C Home Edge Tester comes with a 25 count package of the <a href="/collections/edge-on-up/products/disposable-test-clip-100-pack">Disposable Test Clips</a> and the <a href="/collections/edge-on-up/products/clip-base">Clip Base</a>.</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> </div>