The STANLEY SK58 Hydraulic Sinker Drill is a professional-grade hydraulic drilling tool designed for demanding applications in utility construction, mining, concrete drilling, rock drilling, gas utility maintenance, underwater construction, and infrastructure projects. Built to deliver exceptional drilling performance in harsh environments, the SK58 combines powerful impact energy with a smooth, adjustable rotation system for fast, efficient drilling.

Designed for contractors and utility crews, the SK58 is ideal for:

Blast hole drilling
Dowel hole drilling
Gas utility leak detection
Rock and concrete drilling
Bridge and infrastructure construction
Utility installation
Underwater commercial diving applications (SK58310)
The SK58 features a direct-drive hydraulic rotation motor with fully adjustable speeds from 0 to 300 RPM, allowing operators to precisely match drilling speed to the material and application. Its easy-start feathering trigger provides excellent control for accurate hole placement while reducing operator fatigue.

Depending on the model, the SK58 utilizes air or water flushing to continuously remove drilling debris, helping maintain drilling efficiency and extending bit life. The drill is capable of producing holes up to 3 inches (75 mm) in diameter and 20 feet (6 meters) deep, making it an excellent choice for large-scale utility and construction projects.

Powered by a hydraulic system delivering 7-9 GPM at 1,500-2,000 PSI, the SK58 provides reliable performance while operating with lower noise levels and fewer moving parts than comparable pneumatic drills. The rugged design ensures dependable operation in demanding jobsite conditions.

Features & Benefits

• Heavy-duty hydraulic sinker drill for professional construction applications
• Ideal for blast hole drilling, dowel drilling, utility work, and gas leak detection
• Drills holes up to 3 inches in diameter and 20 feet deep
• Adjustable 0-300 RPM direct-drive hydraulic rotation motor
• Easy-start feathering trigger for precise drilling control
• Available with air or water flushing to efficiently clear drilling debris
• Underwater model available for commercial diving and subsea construction
• Durable construction designed for long service life in demanding environments
• Compatible with hydraulic power units supplying 7-9 GPM flow and 1,500-2,000 PSI operating pressure

Typical Applications

• Utility construction
• Blast hole drilling
• Dowel installation
• Concrete drilling
• Rock drilling
• Pipeline construction
• Gas utility leak detection
• Bridge construction
• Infrastructure maintenance
• Commercial diving and underwater construction (SK58310 model)