4″ Warrior Yellow Range DTH Hammer and Button Bits

The 4″ Warrior Yellow Range Hammer is designed for demanding down-the-hole (DTH) drilling applications, including water well boreholes and production drilling in hard rock formations. Manufactured from high-quality materials, it delivers high drilling efficiency at lower operating pressures, helping reduce fuel consumption while maintaining strong and reliable performance.

Built for durability, this hammer is designed to handle continuous drilling in challenging geological conditions while minimizing downtime and maintenance.

Shank & Thread Specification

The 4″ hammer is available with the following configuration:

• DHD340 Shank – 8 Spline
• Connection Thread: 2 3/8″ API REG

Matching button bits are available in various sizes to suit the required hole diameter. Always ensure the correct bit is used with the hammer to maintain drilling efficiency and prevent equipment damage.

Button Bits

Our DTH Button Bits are fitted with tungsten carbide inserts, providing exceptional hardness and wear resistance for efficient rock breaking and optimal energy transfer during drilling.

Compatible bit sizes for 4″ hammer:

• 115 mm – 140 mm (4.5″ – 5.5″)

Using the correct bit size helps ensure reliable drilling performance and protects both the hammer and the bit.

Important Button Bit Considerations

• Correct Bit Size: Always use the recommended bit size for the hammer to ensure efficient drilling and avoid unnecessary stress on the equipment.
• Oversized Bits: Oversized button bits may cause bit breakage, shank damage, or equipment failure. For larger hole diameters, it is recommended to use a larger hammer.
• Sharpening: Keeping button bits sharp improves drilling efficiency, reduces fuel consumption, and extends the lifespan of the bit.

Hammer Maintenance & Service

Proper maintenance is essential to maximize hammer performance and service life.

• Lubrication: Ensure the hammer is properly lubricated and serviced regularly to maintain peak performance.
• Routine Inspection: Regularly inspect components and replace worn parts such as the chucknut when necessary.
• Correct Tools: When opening the hammer, always use the correct tools such as a breakout bench, suitable spanners, and a copper hammer (never a steel hammer) to avoid damaging internal components such as the sleeve, piston, and chucknut.

Stock Availability

We maintain full stock of the 4″ Warrior Yellow Range Hammers, compatible button bits, and spare parts to ensure fast availability and reliable support for your drilling operations.