3/4" Threaded Connection 
3/4" threaded components use standard, national coarse, threads. The 3/4" threaded connection is stronger and more durable than the 5/8" threaded connection. With that being said, the AMS pro series line of soil sampling equipment is equipped with this connection type.
5/8" Threaded Connection 
5/8" threaded components use standard, national coarse, threads. 5/8" threaded connections are the most common and least expensive. Mainly all of our soil sampling equipment can be equipped with this connection type.
Hex Quick Pin Connection 
Accomplish sampling tasks quickly and efficiently with our semi-new Hex Quick Pin connection. Constructed of hardened steel male/female hex connections, this connection accepts 3/8" snapper pins or heat-treated 3/8" U-clips. The simplicity of the snapper pin is unmatched for hand auger applications, while the heat-treated 3/8” U-clip will allow you to hammer and reverse hammer core samplers with confidence. Reverse augering can be accomplished with either a rubber coated cross handle or ratcheting cross handle. More and more soil sampling equipment is being offered with this connection type.
Quick Connect Connection 
The Quick Connect button-and-hex coupling system will allow sampling components to connect and disconnect faster and with less hassle than our threaded connection systems. When in use, the torque exerted on the system is placed on the hex – rather than threads – which makes the Quick Connect connection durable and prevents the components from binding together. Quick Connect connections also allow for reverse augering with either a rubber coated cross handle or ratcheting cross handle. Most soil sampling equipment is offered with this connection type.
Signature Series Threaded Connection 
Signature Series sampling components feature a heavier thread than 5/8" threaded connections. They are generally more robust and last longer under heavy use. Signature components can be connected and disconnected with only 2-1/2 turns, and have less risk of galling. Our most popular soil sampling equipment is offered with this connection type.
Telescoping Connection 
The Telescoping connection is only offered with Telescoping auger systems. Telescoping sampling components are easily connected and disconnected with 1/4" snapper pins. Soil sampling equipment that is offered with this connection are our hand augers, extensions, and cross handles.