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
