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 design and engineer what you need. All adapters are made in the USA and stocked at our plant in 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 Premier Attachments Catalog.