Corona is a company that was founded in the early 1920s, and they are a leader in the manufacturing of consumer and professional tools for landscape, lawn and garden, irrigation, landscape, agriculture and construction.
One of their top selling products is the Corona AC8300, another small, but powerful sharpening tool. Corona designs their tools for long-lasting use, with just the right blend of functionality. This sharpener features a five inch carbide file. Carbide is a lot harder than steel for cutting. You can sharpen all straight blades with this sharpener. It has a non-slip grip so that you can easily hold it while sharpening. A small plastic cap covers and protects the carbide when it is not in use. There is a tiny hole at the bottom of the sharpener which enables you to put it on your keychain and carry it with you at all times.
Amazon customers rated the Corona AC8300 4.6 out of 5 stars. Most said it is a great product and easy to use. They like the convenience of being able to carry it in your pocket along with the pocket knife. Quite a few customers mentioned that they were initially skeptical of the sharpener, but after trying it out they were very pleased. The customer Sharpknife put it best. “I am a 70-year old fellow who has had his hands on many different sharpening instruments in my lifetime, but this tool is just about the sweetest little device I have ever used. Simple and bulletproof, you’ll keep it for a lifetime.”