Excel 1-1/4x5" Pull-Out Saw Blade. This optional saw blade is intended for the K2, K5 or K6 handle. The saw blade features a 24 teeth per inch and is best used on balsa wood, fiberglass, plastic and model railroad tracks. Excel has been leading the hobby Knife industry with its amazing high quality blades and tools for all sorts of hobbies and other needs that we came to trust when a higher level of quality is needed to get the job done!