Impaktor bit holder to cushion extreme impulse peaks special torsion effect from the double torsion spring equipped with a retaining ring for a secure fit of the bits in the holder the holder is made of stainless steel fitted with a magnet for a secure positioning of the bit and the screw the impaktor technology ensures an above average service life even under extreme conditions due to a best possible utilisation of the material properties and optimally designed geometry mainly used in ind