two key hollow stem augers

...Key Hollow Stem Auger 2 1/4inch (57mm) for environmental and geotechnical applications Double Key Hollow Stem Auger 2 1/4" (57mm) The tool joints are made from 4142 alloy steel and feature single-bolt connections. All 2 1/4″ (57mm) Double Key Hollow Stem Augers feature a continuous hard faced flighting design, 3/8″ (9.5mm) thick on the outer edge with a 5″ pitch. Specifications: Description Lbs. Kg. Auger Section 1 2 1/4″ (57mm) DK Hollow

... method. After reaching the predetermined design depth, cement slurry is injected into ground through swivel device in drive unit and hollow stem whilst multi-shaft auger is withdrawn, making cement slurry to be fully mixed with native soil. With in

... member. One hemisphere of the sphere is fixed on the valve stem, while the other hemisphere can rotate to control the flow of fluid. In ball valve design, the trunnion ball refers to the part of the ball that is usually mounted on the trunnion of the

... cohesive substrata CFA Flight Auger (CFA Piling) In this method the auger stays in the pile bore to the final depth, being withdrawn slowly with the pile spoil whilst concrete is pumped through the hollow auger stem into the pile. As well as in loose or