Tools4Boards 3 in 1 tool for base and side edge beveling, de-burring, sharpening, polishing and and sidewall cutting. Made of durable Lexan polycarbonate plastic. 0-6 degree side-edge, 0-3 degree base-edge angle options. Along with the include 5mm thick file, it accepts 5mm stones and other files including your favorite long file clamped diagonal. Accurately and quickly set desired edge and base bevel angles. Ergonmetric and secure fit in hand to reduce fatigue and eliminate slippage. A must have for every snowsport enthusiast. Fits in pocket for on the slopes edge tweaks. (Download Razor instructions under 'Resources' in Tuning, Waxing and Base Prep blog.)