72in Double-Tube Sampling Probe, 12 Openings, No Partitions | Hand Augers and Soil Sampler Equipment and Soil Testing Equipment - Certified Material Testing Products
Kiel probe - Wikipedia
Amazon.com: 40" Soil Sampler Probe Rod with Sample Ejector, Soil Probe Sampler 304 Stainless Probe Step Tube with Foot Pedal T-Style Handle Soil Probes for Soil Sampling, Lab Garden Soil Test Tool