Drilled shafts are high-capacity deep foundation systems, also known as drilled piers, caissons, bored piles, or cast-in-drilled-hole piles (CIDH). Drilled shafts for structural support can be installed by the dry (open hole), stabilizing polymer slurry, or steel-cased methods.
[pdf] In the hole drill rigs are primarily used for drilling in mining and construction industries. These rigs are designed to drill precise holes with greater depth, offering significant advantages over other types of drilling technologies.
[pdf] When it comes to drilling in confined spaces, crawler rigs offer an ideal solution. These compact yet powerful machines are designed to operate in tight environments while maintaining stability, precision, and efficiency.
[pdf] 
