The Hilti DD 250 core drilling rig is a heavy-duty, versatile tool designed for coring small to large diameter holes in various base materials like concrete, reinforced concrete, and asphalt. Key specs include:
- Drilling diameter range: 15/32″ to 19-11/16″ (12-500 mm)
- Weight: 81 lbs (complete system)
- Speed: Four-speed gearing with no-load RPM: 240 RPM (1st gear), 580 RPM (2nd), 1160 RPM (3rd), 2220 RPM (4th)
- Operation mode: Rig-based wet or dry drilling
- Dimensions: Approximately 24″ x 7.5″ x 8.5″
- Features: Air-cooled motor, real-time digital display for controls, and optional Cut Assist for automated drilling.
