Bosch GDB 350 WE 3200W Diamond Core Drill, 350mm Capacity

GDB 350 WE Diamond Core Drill

The Bosch GDB 350 WE provides the high torque and power required for wet core drilling in reinforced concrete and masonry. This 3200W industrial-grade motor drives core bits up to 350mm in diameter, making it suitable for heavy-duty civil engineering and commercial plumbing installations.

Built for the Job

This equipment is designed for stationary use on a drill stand to ensure accuracy and safety during large-diameter penetrations. Contractors use this machine for creating openings for ventilation pipes, drainage systems, and structural reinforcements. The robust construction handles the vibration and thermal loads found on high-volume construction sites. It operates exclusively as a wet-drilling unit, utilizing a constant water feed to cool the diamond segments and flush out slurry, which prevents bit binding and extends the life of the consumables.

• Core drilling in reinforced concrete for large-scale HVAC and plumbing services.

• Creating structural openings for industrial cabling and utility infrastructure.

• Test coring for concrete quality assessment in civil engineering projects.

Product Highlights

High-Torque 3-Speed Gearbox

The manual three-speed transmission allows operators to match the rotational speed to the specific core diameter for optimal cutting efficiency.

Integrated Safety Systems

• Soft start electronics prevent circuit overload and provide controlled bit engagement.
• Overload protection reduces the risk of motor burnout during high-resistance drilling.

Technical Specifications

What’s Included

• 1 x GDB 350 WE Diamond Core Drill Unit

• 1 x Integrated PRCD (Residual Current Device)

• 1 x Water Connector Valve

On-Site & Workshop Notes

• Always mount this motor to a compatible drill stand (such as the GCR 350) before operation; hand-held use is not permitted due to high torque.

• Verify that the water supply pressure is consistent to maintain cooling and debris removal during deep boring operations.

• Check the oil bath gearbox levels periodically to ensure long-term lubrication of the internal transmission components.