The V-shaped spikes produce holes which funnel the randomly dispersed seed,concentrating them at the proper depth for best germination. The new high volume seed box utilizes a proven roller design with quick-change gears, allowing the machine an infinite range of feed rates with all types of seed, from very large to very small (bents) seed types. Finishing up is a large smooth-roller, which can be optionally equipped with a second set of spiker rings, followed by the rear brush. With operating speeds up to 7.5 miles per hour, the Speedseed 1600 provides fast, accurate and economical overseeding.