Leffer Drilling Tools and Casings

Leffer casings are designed to perform cased holes down to a depth of 35 meters especially for the construction of bored piles by rotary drilling rigs. Due to the machining accuracy, casing joints guarantee a fast placement and bolting of the casings as well as best force transmission.

Recent developments in hydraulic casing oscillators including full 360° turning casing rotators allow contractors to construct bored piles into depths of down to 100 m.

Hammer & Steel also offers Leffer augers in various sizes and styles including:

Augers with flat teeth for cohesive soils and easily loosened rock (Type BS)
Augers with round shaft bits for hard rock and secant pile walls (Type BSF)
Conical Auger with round shaft bits for very hard rock
Continuous flight augers
Hollow augers
Drill buckets equipped with flat teeth to loosen and excavate soft material under water
Drill buckets equipped with flat teeth and additional round shaft bits for harder soil conditions

Company Headquarters	Branch Offices
11916 Missouri Bottom Rd. St. Louis, MO 63042 Ph: 800.325.PILE (7453) Ph: 314.895.4600 Fx: 314.895.4070	Benicia, California Ph: 877.224.3356 Boston, Massachusetts Ph: 508-419-7374	Green Cove Spring, Florida Ph: 904.284.6800 Houston, Texas Ph: 281.852.1136	Kansas City, Kansas Ph: 913.681.9295 Minneapolis, Minnesota Ph: 952.469.6060