Drilling for soil sampling preparation. SO-111 Drilling Rod Solid bar, 1mtr length, 1 1/4" dia 10 Pcs SO-112 Iwan Type Auger Welded steel, two radial blades, 4" dia 1 Pc SO-113 Straight Chopping Auger Steel bar, hardened tip, 45 mm width 1 Pc SO-114 T-Piece Welded steel 1 Pc SO-115 Tube Adaptor Machined steel, with 3 clamping bolts 1 Pc SO-116 Turning Rod Machined....