Abstract: An adjustable miter gage apparatus and method for making precision miter cut angles with conventional radial arm saws, table saws, band saws, router tables, and other woodworking machines. The miter gage apparatus utilizes a flat base or table top with a large radius arc thereon and adjustable gages located on the circumference of the arc. The apparatus acts as a large protractor and allows the cutting angle to be accurately adjusted relative to the actual angle at which the saw blade is initially positioned by the woodworking machine. The adjustable gages have set screws threadedly mounted therein for making fine adjustments and may be permanently or removably installed on the base or table top. The set screw threads and radius of the arc are related such that turning the set screw will increase or decrease the angle to within a fraction of a degree. A preliminary angle setting is made using the existing miter scale on the woodworking machine.