TriSharp's Dual Rotary Blade Sharpener: People ask me "Does it really work?" more often than they ask about any other product, and for good reason. Replacement rotary blades sell for approximately $9 each. Most quilting books and teachers recommend that you replace your blade each time you start a new quilt. If you quilt as much as I do, over the course of a year, the cost of replacing rotary blades can be quite an investment. Many of my blades don't get changed until the blade gets too dull to cut. I imagine that quilters who save every tiny scrap
