Desciption For 4257980 The Einhell TC-RH 800 4F rotary hammer is a powerful 800 W helper with four basic functions for restoration and renovation jobs: drilling, impact drilling and chiseling with and without lock. Rotary hammers are used whenever the going gets tough. They hammer and drill into tough material such as stone and concrete. The impact pulses literally "break down” the material, while the cutter eats into the material with its rotating movement and breaks it out. Rotary hammers are suitable for both demolition work and for pulling down or breaking off hard materials such as concrete, brick or stone. The rotary hammer delivers up to 2.6 joule to the tool and with its pneumatic impact mechanism it provides very good forward traction for a drilling capacity of up to 26 mm in concrete.