An SDS-MAX impact head is used only with perforators equipped with an SDS-MAX connector.  It is meant to transfer the shock load from the jackhammer to the driven shaft through the driving screw.

The accessory is made of hardened steel.  An impact head is compatible with all types of DKC grounding conductors provided that the appropriate driving screws are used:

  • For the hot-dip galvanized coupling grounding D16 mm, the NE1404 screw must be used;
  • For hot-dip galvanized grounding without coupling D16 mm - screw NE1403
  • For a copper-bonded grounding D14.2 mm - screw NE1408.