Vallorbe is a world leader in precision files, and files for sharpening chainsaws, with over one hundred years of technical expertise dating back to 1899. Designed with professionals in mind, they produce top-quality, high-performance, durable tools.
Three Square bit file:
Easier to handle but not as effective as the double chisel, for people who want to get familiar with square ground filing.
The three-square type is particularly suited to sharpening 3/8″ or .404’’ chains
Square-ground filing is much more challenging than round file filing and requires different techniques.
Do not forget that square-ground filing requires the use of a round file to clean out the gullet:
The best sellers are the double chisel and three square bit files with precise bevel angles.
Remark: The round files together with our file guides or automatic sharpener VOAK,
Still remain the safest and fastest way of sharpening a saw chain!