@tumblerusa: Are you wondering if the way you’re sharpening is working its magic on your knife? There's an easy way to check - just gently run your fingernail along the edge of the blade, starting from the handle and working towards the tip. If you feel a rough, uneven edge, that's a good sign that a burr has formed. A burr indicates that the sharpening process is working and that the blade is being properly honed. Keep using your trusty Tumbler Rolling Sharpener until the burr becomes consistent along the entire edge of the blade. Happy sharpening! #sharpening #knifelove #burrlove #tumblerrollingsharpener