J'ai trouvé la solution :
Set swApp = Application.SldWorks
Set Part = swApp.ActiveDoc
Set SelMgr = Part.SelectionManager
Part.ClearSelection2 True
Dim SkCircle As Object
Set SkCircle = Part.SketchManager.CreateCircle(0.05089546697908, 0.1514160210352, 0, 0.05637302852263, 0.1469609376464, 0)
boolstatus = Part.Extension.SelectByID2("Point1@Origine@Pièce51-1@Vue de mise en plan1", "EXTSKETCHPOINT", 0, 0, 0, False, 0, Nothing, 0)
boolstatus = Part.Extension.SelectByID2("Point5", "SKETCHPOINT", 0.05089546697908, 0.1514160210352, 0, True, 0, Nothing, 0)
Part.SketchAddConstraints "sgCOINCIDENT"
Part.SketchAddConstraints "sgCOINCIDENT"
Part.ClearSelection2 True
boolstatus = Part.Extension.SelectByID2("Arc2", "SKETCHSEGMENT", 0.1060269148852, 0.2591576180298, 0, False, 0, Nothing, 0)
boolstatus = Part.Extension.SelectByID2("Arc2", "SKETCHSEGMENT", 0.09157040374567, 0.2475179348306, 0, False, 0, Nothing, 0)
Part.CreateBreakOutSection 0.003175
Part.ClearSelection2 True
End Sub
Voila merci à tous quand même