This upgraded WDT (Weiss Distribution Technique) tool is designed to improve espresso extraction by evenly distributing coffee grounds before tamping. Ideal for use with Breville Barista espresso machines and other compatible setups, it helps reduce clumping and channeling for a smoother, more consistent brew. Crafted from food-grade hard plastic with 304 stainless steel needles, the tool is durable, safe, and built for precision. The fine 0.4mm needles allow for accurate distribution, helping to enhance coffee flavor and extraction quality.