If you’ve been looking for an affordable, accurate file guide look no farther than Race Place’s Bevel Beast. The Bevel Beast is a file guide for attaining an accurate bevel on the base edge and addresses several problems associated with old bevel sleeves and the masking tape method.
The Beast works well on boards of any width because the distance between the edge and the piece of metal that determines how much bevel is filed into the base edge remains constant. Another advantage of the Bevel Beast is that the opening for the file is large enough to accommodate files and stones of varying size so you can use the same file guide from filing to polishing.
The Beast comes in bevel degrees from .5 degrees to 2 degrees in half degree increments, and like other base edge file guides be prepared to buy one guide for each degree of bevel. The Beast base edge file guides sell for $12 each.