Home \ Products \ Earth Auger Accessories and Parts \ Earth Auger Adapters Earth Auger Adapters Premier Attachments auger adapters are readily available in all the most popular sizes and configurations. 2" Round, 2-9/16" Round, 2" Hexagon, 2-1/2" Hexagon, 2-5/8" Hexagon, 3" Hexagon and 4" Square. If you don't see the adapter you need, just give us a call and we will do our best to meet your needs. All adapters are made in the USA and stocked at our plant in Fort Wayne, Indiana. For the best, most versatile, most reliable earth auger adapters around – and the customer service to go with them – contact Premier Attachments. Also, find out more about our earth auger adapters in our 2020 Premier Attachments Catalog.