Frankford Arsenal Perfect-Fit Trays are sized forindividual calibers or a family of calibers for aprecise fit. Perfect-Fit trays are an essential toolfor reloading efficiency and organization.Twelve tray sizes are available for 25 ACPthrough 500 Nitro. Each tray holds 50cases (tray number 9 holds 45). A liparound the outside edge provides asure grip on the tray. Tray #4 Hole Diameter: 0.44 Hole Depth: 0.625