The Kerf Cutter VBRK Valve Box Repair KitKerf Cutter VBRK Valve Box Repair Kit This is the ideal choice for water departments and municipalities. Its design allows for the valve box to rise and settle evenly with the road when grounds are either saturated or subject to frost heave, reducing the risk of damage by snow plows or heavy trucks. The Kerf Cutter tool is used to cut and remove the broken top in a broken or protruding valve box. This kit is then used to professionally replace and