Threaded Collar fits manual sliding hammer for both the JMC Environmentalist's Sub-Soil Probe (0.8 inch diameter sampler) and the JMC Environmentalist's Sub-Soil Probe Plus (1.2 inch diameter sampler).
Threads together in any combination with our 13 and 26 inch Rod Extensions (The picture shows both). Compatible with Backsaver, "T", and Conventional Handles. Also fits most JMC Sampling Tubes.