Design Highlights

• Hammer to Drill a hole of Ø 140.0 – Ø152.4 mm (5.5” – 6.0”).
• FDS55DI is a valve less type hammer designed for high performance at low operating air pressures.
• D5 bit has a strong robust design to withstand heavy duty application, and it doesn’t use foot valves which reduces the possibility of hammer failure.
• FDS55DI Hammer maximizes energy output and reduces service requirements.
• Wear sleeve is reversible.
• Two Start threads on Top sub and Drive sub ensure easy coupling/uncoupling of hammer.
• All critical internal components are heat treated under strict control to maximize tool longevity.
• An overall cost-effective and user-friendly tool for use in the most demanding conditions.