This heavy-duty auger is engineered for serious earth-moving capabilities, designed specifically for tractor-mounted post-hole diggers and skid steers. Built with robust double flighting and enhanced welding throughout, this professional-grade tool features a reinforced input shaft collar for maximum durability. The auger is specifically designed to attach to 2-inch hex gearbox output shafts, making it compatible with most standard equipment configurations. Its industrial-strength construction ensures reliable performance for demanding drilling applications. The thick spiral flighting design efficiently moves soil and debris, while the reinforced construction withstands the rigors of frequent use in various soil conditions. Perfect for contractors, farmers, and anyone needing reliable post-hole drilling capability. Note: This auger is not compatible with 2-inch round drive 3-point post hole diggers.