Billes de rétention inox 440C

High-precision calibrated tank, made of tempered 440C stainless steel, guaranteeing exceptional wear resistance. This ball, sold in a 20-piece bag, is to be used as a retention ball for the production of liner-lock, side-lock and frame-lock knives. By its extremely precise diameter, it keeps the blade closed without any play, but also helps the opening movement by reducing friction surfaces between the blade and the plate.