The cracking/clustering tolerance used when constructing topology elements from the map topology's feature class collection.
[Visual Basic .NET] Public Property ClusterTolerance As Double
[C#] public double ClusterTolerance {get; set;}
Product Availability
Available with ArcGIS Desktop.
Remarks
ClusterTolerance is used by the ITopologyGraph::Build method as the tolerance to crack and cluster the features participating in the MapTopology.