Is your vintage Hunt Boston sharpener humming but not spinning? Or perhaps it's making a grinding noise? Most often, the culprit is a stripped or cracked plastic drive gear. Instead of throwing away a high-quality machine, you can fix it in minutes with this 2-pack of premium replacement gears. WHY CHOOSE THIS REPAIR KIT? Hunt Boston sharpeners are legendary "workhorses" in classrooms and offices. Don't let a small plastic part send a great tool to the landfill. This repair kit is the most cost-effective way to fix common issues like jammed blades, motor humming, or failure to sharpen.