The strong chisel input resists the extremely high leverage forces in flat roof refurbishment

Massive chisels break open bitumen and insulation or nailed bitumen sheeting and thermal roof gravel. The tool length is very important: The user stands upright and is able to induce a high leverage force. As a result of this he can break open big boards while moving through material.
The strong 18 mm chisel holder of the VH 50.18 / VH 60.18 is keeping up the pressure of tool length and leverage force.