Pneumatic rotary hammer drills can be used for drilling stone, bricks, concrete, steel and wood safely in wet, hazardous and dusty environments where electric drills can’t. Ideal for the  petrochemical industry where electric tools are prohibited, wet areas such as pipelines, drains, sewers, retaining weirs, etc and dusty construction sites and manufacturing plants. With additional seals and an exhaust hose, it can be used for underwater applications. SDS PLUS BIT HOLDER / LIGHT WEIGHT