BOSCH Club Hammer 1000g For big DIY hammering jobs where strength is a must, the BOSCH Club Hammer 1000g should be in every toolbox. Composed of high-quality carbon steel with a hardness of 50-58 HRC, this hammer delivers powerful blows. It has a fiberglass core, so it strikes more efficiently while generating fewer vibrations. Designed for robust striking thanks to the symmetric 1000g head design. When hitting a chisel, the ergonomic softgrip handle is an extra benefit that enhances tactile control and comfort for optimal force and ease of use. Technical details: Material Head: Carbon Steel Handle Core: Fiberglas Head Weight: 1000 g Head hardness: 50-58 HRC Striking area: 2x 40x40mm Scope of Supply: 1x Club Hammer 1000g.