Stanley Hydraulics Underwater Hammer Drill - HD45310

Stanley Hydraulics Underwater Hammer Drill - HD45310

The Stanley Hydraulic HD45 Hammer Drill is a heavy duty underwater model designed for drilling in concrete, rock and masonry. The feathering on/off valve and adjustable rotation speed allows easy drill bit start-up and precise control. The high torque rotation motor drives standard 736 Skil hex carbide tipped drill bits and is capable of drilling a 2” diameter hole up to 29” deep. Fluted drill bits require no water or air to clear holes. Ideal for drilling holes for setting anchor bolts.

Specifications

Chuck Capacity: Up to 2” diameter or 4” core bit
Steel Capacity: 736 Skil Hex
Circuit Type: Open Center
Flow Range: 7-9 GPM / 23-34 LPM
Optimum Flow: 8 GPM / 30 LPM
Working Pressure: 1500-2000 PSI / 105-140 BAR
Full Relief Setting: 2250 PSI / 155 BAR
Rotation Speed: 0-300 RPM
Weight (less bit): 49 LBS / 22.2 KG
Length: 24 1/2” / 62.2 CM
Width (at handles): 14” / 35 CM
Hydraulic Ports: -8 SAE O-Ring
Comes With Couplers: No
Comes With Whips: Yes

Manual

Download the HD45 Spec Sheet!

What Our Experts Think

The Stanley HD45310 Underwater Hammer Drill is a powerful and reliable tool designed for underwater construction, marine maintenance, and salvage operations. Engineered for high-impact drilling in concrete, rock, and masonry, it delivers consistent performance in harsh underwater environments.

• • Heavy-Duty Impact Power – Designed for efficient drilling in tough materials.
  • Hydraulic Operation – Provides steady, reliable performance without electrical hazards.
  • Corrosion-Resistant Build – Ensures durability in saltwater conditions.
  • Ergonomic Design – Comfortable grip and balanced weight reduce diver fatigue.
  • Versatile Applications – Ideal for underwater infrastructure, pier repairs, and offshore projects.

Q&A

Q: What is the Stanley HD45310 Underwater Hammer Drill?
A: The HD45310 is a high-performance hydraulic hammer drill designed for underwater drilling in marine construction and commercial diving.

Q: What materials can it drill through?
A: It is built to drill into concrete, rock, and masonry, making it ideal for underwater infrastructure projects.

Q: What hydraulic flow rate does it require?
A: It operates at 7-9 GPM for optimal performance.

Q: What makes it suitable for underwater use?
A: It features a corrosion-resistant build, a robust trigger mechanism, and a powerful impact system designed for deep-water applications.

Q: What industries use the HD45310?
A: It is commonly used in underwater construction, salvage, offshore maintenance, and commercial diving operations.

Maintenance Tips

• Pre-Use Inspection – Check hoses, fittings, and seals for wear or leaks.
• Flush After Use – Rinse with fresh water to remove salt, silt, or debris.
• Hydraulic Fluid Check – Use recommended oil; monitor for contamination.
• Bit & Chuck Maintenance – Clean and lubricate regularly for optimal performance.
• Seal & O-Ring Replacement – Inspect and replace as needed to prevent leaks.
• Hose Connection Care – Ensure secure, damage-free connections to avoid pressure loss.
• Storage – Keep in a dry, ventilated area away from direct sunlight and extreme temperatures.