4" DTH Hammer
RH40 - Uses 340 Shank DTH Bit

Designed for drilling 4" and larger holes.

Features

- Wearsleeve is reversible.    
- The piston is the only moving part making this hammer very reliable.
- All external parts are hardened to resist wear.
- Designed for maximum penetration while using minimal fuel consumption.
- Still utilizes long proven piston design.
- All parts are made from US Certified Steel.

Download RH40 Hammer Manual.

* Hammer will run on less volume but penetration rates will be significantly slower.

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