Mini disc-aerator for (compact) tractors - The Imants Mini Rotoknife is a linear, disc-aerator, designed to relieve surface compaction, improving aeration, reducing thatch build up and removing surface water, which in turn promotes tillering on Rhizome grasses. The Mini Rotoknife is fast across the surface and is a versatile root-zone management tool. The disc rotor shaft can be set in 3 positions, giving flexibility in working depth and linear spacing, allowing slicing to a depth of 6", or shallow slicing at 2" spacing. The Mini Rotoknife is available in towed or mounted format, and is compatible with most turf trucksters and compact tractors. It is ideal on warm or cool season grasses.