Impact driver Makita DTD173RTJ 18V cordless, 1/4 inch chuck, 3600 RPM, pistol-handle, Li-Ion

Makita DTD173RTJ is a cordless 18V impact driver with a 1/4" hex chuck and a pistol-style handle. It offers variable idle speed up to 3600 RPM, a built-in light for improved visibility at the workpiece and a compact design weighing around 1.5 kg. The tool is intended for fastening and loosening screws and bolts in construction, assembly and maintenance tasks.

Advantages

The pistol-handle design provides comfortable grip and control during prolonged use. High maximum torque and fast impact rate allow efficient driving of screws and bolts into a variety of materials. The integrated light helps to illuminate dark work areas and the cordless battery operation ensures portability on sites without mains power.

Suitable for

• General construction fastening and framing
• Assembly of furniture and fittings
• Maintenance and repair tasks in workshops or on-site
• Installing decking, fencing and exterior fittings

When it may not be suitable

This impact driver is designed for fastening and loosening tasks and is not a replacement for heavy-duty impact wrenches intended for large automotive lug nuts or industrial bolt torquing where much higher torque and specialised sockets are required. For extremely high-torque precision tightening with calibrated torque values, a torque wrench should be used instead.

Key specifications

• Power: 18 V (battery)
• Chuck type: 1/4" hex
• Idle speed (variable): 1100–3600 RPM (max 3600 RPM)
• Maximum torque: 180 N·m
• Impact rate: 3800 IPM
• Weight: approximately 1.5 kg
• Built-in light: yes
• Colour: black, blue
• Noise levels (approx.): sound power 108 dB, sound pressure 97 dB, uncertainty 3 dB

How to use

Fit a compatible 1/4" hex bit into the chuck, secure the battery and select the appropriate speed by controlling the variable trigger. Position the bit on the fastener, apply steady pressure and operate the trigger to drive or remove screws and bolts. Use the built-in light to improve visibility in dim areas. Follow the battery and charger manufacturer instructions for charging and storage.

What to consider before purchase

• Ensure 18V Li‑Ion battery compatibility with existing tool batteries if you plan to share batteries across devices
• Consider required torque and whether the maximum 180 N·m meets the demands of your tasks
• Evaluate weight and handle shape for comfort during extended use
• Account for noise levels and use hearing protection during prolonged operation

Recommendations

Use appropriate fastener types and bit sizes, keep the ventilation slots clear, and wear eye and hearing protection. For repetitive heavy work, use batteries with sufficient capacity and follow recommended duty cycles to avoid overheating.