Replacement part. Sandwiched between lower end of sampling tube and cutting tip. Directs flow of soil into the liner. Without it, clay samples have a tendency to crumple the plastic liners.
The heavy (12 pounds) metal sleeve that moves up and down while pounding the sampling tube into the ground. Fits both the JMC Environmentalist's Sub-Soil Probe and the JMC Environmentalist's Sub-Soil Probe PLUS.