360 Quad-Steer ™ Groundsmaster ® Winning the world over. The Groundsmaster 360 turns a new corner in turf maintenance with revolutionary Quad-Steer ™ all-wheel steering. Groundsmaster ® 360 Quad-Steer™ The back of the mower follows within the width of the deck, making it easy to trim around trees, poles or along fences without hitting the mower’s rear end.