Micro tines are smaller diameter tines, typically ranging from 1/4 to 5/8 inches, used in aerators like those offered by Toro. These tines are particularly useful for reducing surface disruption on golf greens and other sensitive turf areas while still allowing for effective aeration. They create smaller holes that heal quickly, making them ideal for use on fine turf where frequent aeration is necessary but surface disruption needs to be minimal.