Garden Auger Spiral Drill Bit for planting, Bulb & Bedding Plant Augers Plant Auger is an excellent choice for any gardener who loves to play in the soil. Perfect for planting bulbs, bedding plants and seedlings; deep watering, aerating and fertilizing trees and shrubs; and weeding. The gardens auger drill bits are easy to use and will fit most electric or cordless drills that can accommodate a 3/8 inch bit on the market. Different size meet your different needs 1.6 X 9 inch & 3 X 12 inch & 4 X 16 inch auger drill bit 1.6 X 9 inch is a good size for root aeration, and for installing smaller plant stakes or poles. 3 X 12 inch is a good size for horizontal drilling, mixing paint, cement or soil. 4 X 16 inch is a good size for setting smaller fence posts or planting annuals and perennials that come in quart-sized pots. Tapered tip Center position, not easy to run off. Cordless Auger Drill Bit Digs Use in any electric or cordless drill that can accommodate a 3/8" bit. 18V or greater drill recommended. Durable Material Manganese Steel with glossy black painted finish, Durable and useful and can be used for a long time. Let your drill do the work for you Plant flower Plant bulb Mix fertilizer Make ice hole Drill post hole Drill umbrella hole