5mm (0.20, or 5 holes per inch). 6mm (0.24, or 4 holes per inch) each of the other. Deluxe (green) comes with a total of four sewing wheels or dots.
3mm (0.12, or 8 holes per inch). Ergonomically curved to maximize comfort, control and efficiency, with a fingerrest halfway in the neck to ensure positive control, this tool is made from steel, no cast metals, it will last for years this high quality tool is an excellent addition to your leather workshop.