Establishes the moisture-penetration resistance relations of fine-grained soils. Includes these interchangeable needles (area in sq. cm): 1 (6.45), 3/4 (4.84), 1/2 (3.22), 1/5 (1.29), 1/10 (0.65), 1/20 (0.32), 1/30 (0.22cm²) and 1/40 (0.16cm²). Replacement needles available. Meets ASTM D1558.

Shipping weight: 17 lbs. (7.7 kg)