Coffee Powder Stirring Tool Different from other espresso stirrer, this coffee stirring needle uses 8 thin 0.5mm needles to blends coffee more evenly and break most of the agglomerates to promote more even extraction and better espresso. The handle of the wooden espresso wdt tool is about 46mm/1.8 inches, the stirring needle is about 79mm/3.1 inches,the diameter of the stirring needle is 0.5mm, and the base stand is about 81mm/3.2 inches. This espresso tool set fits almost any type of coffee filter.