This new 12 inch earth auger drill bit is designed for use with a gas powered post hole digger and features a 3/4 inch shaft. It is a practical replacement or spare part for digging fence post holes and similar ground work where a wider hole size is needed. Free shipping is included, which may help reduce the total purchase cost. Buyers comparing parts should review shaft compatibility and fit with their existing digger before ordering. Since detailed material and additional specifications are not provided here, check the listing for full details. 12 Inch Earth Auger Drill Bit 3/4" Shaft For Gas Powered Post Fence Hole Digger. Color: Black, Condition: New, Made in United States. Listed at 46.27 USD. Feature: 1.31" Long for each diameter，compatible with any Auger machine head with 3/4" Shaft 2.Durable cast steel pilot bit with tungsten carbide cutting tip 3.Drills holes in all types of soil; the dirt removed is left around edge of hole in loose, easy-to-pack condition 4.Exponentially increases planting speed and ease 5.Idea for installing fence posts, decks, planting trees and shrubs Specifications: Material: Cast Steel Color:Black .