Compact 3mm 4mm Skate Blade Sharpener

A manually operated, portable ice skate blade sharpener built with PP plastic casing and integrated whetstone abrasive elements. Overall size is 6.1 cm × 2.7 cm × 2.5 cm (2.40″ × 1.06″ × 0.98″), making it among the smallest functional guided sharpeners available. Equipped with two fixed blade guide slots: 3 mm for finer figure skate blades and 4 mm for broader hockey skate blades. For blades falling outside these specifications, the unit supports user-adjustable width via a centrally located screw and bilateral card shimming — allowing incremental, symmetric expansion of the guide channel while maintaining structural integrity and alignment stability during stroking motion.