Bit-Check 6 PZ Impaktor 1, 6 pieces 6x 855/4 IMP DC Impaktor bits: 4x PZ 2x50 mm, 2x PZ 3x50 mm6 Wera Impaktor bits tidily arranged in a minimum of space in a practical Bit-Check. The Impaktor technology offers an above-average service life even under extreme circumstances thanks to the best possible utilisation of the material properties and the optimi