Consumable wearing parts for the Von Arx DK 2 H pneumatic scabbler, the two-head machine used to remove laitance, projections, encrustation, scale and coatings from concrete and steel. The host DK 2 H runs on compressed air at up to 7 bar, drawing 320 L/min through a G 3/8 in connection, so it suits scabbling on sites with no mains power. Von Arx catalogues one kit per head count: 700769 for the single-head DK1H, 700771 for the two-head DK2H. Von Arx 700771.