JS-170 CORPS OF ENGINEER SOIL SURFACE SAMPLER ASTM D-2937 For determining soil density in place
JS-171 Hammer “Machined Steel, galvanized, 10 lbs, slidding weight 27 1/4″” falling heigth.” 1 set JS-172 Hammer “Machined Steel, Galvanized, 3″” o.d., 2-7/8″” i.d. 2-13/16″” length.” 12 pcs “Dimension (l x w x h) : 25 x 25 x 100 cm Gross Weight : 35 Kg”