Designed for the professional who wants to provide core type aeration at a high speed, the Lawnaire IV is the highest quality roll-type aerator on the market. It is fitted with a 4hp Honda engine and is driven via V belt and chain. It is compact and easily transported and has 30 hardened alloy steel tines which are 19mm in diameter with a coring depth of up to 70mm. Golf/Sports Turf/Municipal. Limited Offer! Ex Demo machine – as new condition.