This new 10-inch earth auger drill bit is designed for use with a gas powered post hole digger, making it a practical option for digging fence post holes and other ground boring tasks. It is listed with free shipping, which can help simplify the total purchase cost. The 10-inch size may be an important buying note depending on the diameter of holes you need for your project, so compare it with your equipment and job requirements before ordering. This item may suit buyers replacing a worn bit or adding another size for yard, farm, or fencing work. Check the listing for full details. 10" Earth Auger Drill Bits for Gas Powered Post Fence Hole Digger. Color: Black, Condition: New. Listed at 40.03 USD. Description: 31" Long for each diameter，compatible with any Auger machine head with 3/4" Shaft Durable cast steel pilot bit with tungsten carbide cutting tip Drills holes in all types of soil; the dirt removed is left around edge of hole in loose, easy-to-pack condition Exponentially increases planting speed and ease Idea for installing fence posts, decks, planting trees and shrubs .