Earthquake® Earth Auger Bits provide precision and control when drilling through tough soil. Constructed with extra-thick steel flights and a durable powder coat finish, these earth auger bits are designed to last. A replaceable AR400 steel blade is extremely abrasion resistant and holds up to slicing through rocky soils and clay. For smooth and easy hole starting, a specially designed fishtail centering point and pilot plate eliminate slippage and effortlessly guide the earth auger bit into the ground. With a 7/8” smooth shaft connection point, this earth auger bit pairs with any Earthquake 7/8” smooth shaft earth auger powerhead (sold separately) At 4” in diameter and 36” long, this Earthquake® Earth Auger Bit makes drilling easy for a variety of tasks such as small annuals, small potted plants, post installation, and many other landscaping and agriculture needs. For extra deep holes, Earthquake 12” and 18” Earth Auger Bit Extensions are available. Backed by a 1-Year Limited Warranty and a U.S.-based customer support team the Earthquake Earth Auger Bits will perform for years to come.