The ultimate classroom sharpener with an innovative replaceable cutter system that allows for new cutter installation within seconds. Enhance the sharpening experience in your classroom. HHCâ„¢ cutter technology for faster sharpening and longer life. QuietSharpâ„¢ super duty motor for quiet stall-free operation. Sharp & Glowâ„¢ signals when sharpening is complete. SharpStopâ„¢ auto shutoff prevents oversharpening and extends pencil life. Magnasafeâ„¢ tamper proof safety switch shuts down motor when tray is removed. Brushed metal sleeve design. Rubber end caps, oversized 6-size selector dial and high capacity shavings tray.