Your single source for large diameter shaft-drilling equipment, tooling and installation methods.


The Steven M. Hain Company manufacturers Mandrels in the standard sizes listed in the chart below, as well as in custom sizes depending on customer requirements for varying job conditions.

Mandrel Specifications

Lower Flange Dia. Stem O.D. Standard Length Weight
30 inches 12 inches 45 feet 13,100 lbs.
41 inches 16 inches 40 feet 15,000 lbs.
60 inches 16 inches 25 feet 21,850 lbs.