What is the difference between the bayonet-style and conical screw connections for the two-piece augers?
On the bayonet-style connection the top and bottom are clamped into each other, then a coupling sleeve is pushed down to lock the connection. The advantage is quick coupling without the use of tools and no jamming of the connection even under adverse working conditions. The conical screw connection is based on male and female thread on the parts to be coupled. The conical thread is cone shaped which gives it a firmer, more stable connection. It would be an advantage to use the conical thread in harder soils or where hammering or jarring is required.