The Highway HM-38 Mechanical Pressure Digger stands out as a powerhouse in utility and construction drilling applications. Designed with a rugged 3″ solid kelly bar and a robust mechanical drive, this unit delivers exceptional torque and crowd force for deep-hole drilling in a wide array of soil conditions. The HM-38 is built in the USA and is well-suited for electric utility pole setting, telecom tower footings, and other demanding utility tasks. It features straightforward operation and is engineered for longevity, with most units remaining in service 15–25 years or more with proper maintenance.

Highway diggers are trusted by contractors and utilities in Circleville, Ohio, and across the US for their tried-and-true design, easy maintenance, and reliability under tough conditions. The HM-38 can accommodate augers up to 72″ in diameter, and its versatility supports mounting on single rear axles or specialty carriers. Sales, service, and parts are available for all Highway equipment through our fully stocked and factory-trained network. Please note that while we specialize in aerial equipment rentals, the HM-38 is available for purchase and service support.

We proudly support customers throughout the Circleville, OH region and nationwide, offering expert parts sourcing and field service for all Highway Manufacturing equipment.