The gsh 27 vc professional is the most powerful breaker from bosch it has a high impact performance value due to it providing 62 joules of impact energy and 1000 blows per minute the ghs 27 has very low vibration for its power only 85 mssup2 largely thanks to the decoupled handles and the vibration reduced hammer mechanism ndash for a longer trigger time per day its lifetime is extended thanks to high quality components made of aluminium and steel and the ergonomic handles with softgr