This hilti 3512857 product is a TE 40 performance package. This is the most powerful combihammer in its Class. Further, this product provides maximum operator comfort thanks to perfectly balanced, ergonomic design. Also, this product has an extremely wide application range due to easily interchangeable chucks: te-c click chuck (SDS Plus), 3-jaw key chuck and keyless quick-release chuck. Finally, this tool is perfect for hammer drilling in concrete, masonry and natural stone.