This is our preferred method of planting large quantities of bulbs. The auger has a root cutting blade and a soil whip to move loose soil back from the edge of the new hole. It makes a 3" diameter hole and piles the soil at the top of the hole for easy burying of the bulb. 3/8" diameter shaft fits most drills. Auger portion is 9" long; overall length is 24". Drill required but not included.