This is one of the nicest taper tools I have used. The redesigned Tru-Center taper tool. Improved with solid, pre-set blades for no setup or adjustments needed. Machined from aircraft-grade aluminum for precision. Comes with shaft guides (color-coded) in diameters 5/16" (red), 11/32" (black), and 23/64" (blue). Does 11° nock and 5° point tapers. Instructions included.