Many micro-scraps are generated when a micro-triangular pyramid array (MTPA) is machined by the fly-cutting method. Micro-scraps are generally not removed quickly enough; therefore. these residual micro-scraps participate in the cutting process again. scratching the workpiece surface and accelerating diamond tool wear. https://lecoureures.shop/product-category/ski-de-fond-accessoires-sac-a-ski/