diff --git a/Step/wwwroot/src/components/tooling-equipment.ts b/Step/wwwroot/src/components/tooling-equipment.ts
index 3a05b8be..739dc42b 100644
--- a/Step/wwwroot/src/components/tooling-equipment.ts
+++ b/Step/wwwroot/src/components/tooling-equipment.ts
@@ -101,7 +101,7 @@ export default class toolingEquipment extends Vue {
     this.toolsConfiguration = (this.$store.state as AppModel).tooling.toolsConfiguration;
     this.edgeConfiguration = (this.$store.state as AppModel).tooling.edgesConfiguration;
     this.selectedTool = item;
-    this.copySelectedTool = JSON.stringify(item);
+    this.copySelectedTool = Object.assign({}, item);
     this.enableParameters = true;
     this.enableEquipment = false;
     this.selectedEquipment = null;
@@ -194,11 +194,11 @@ export default class toolingEquipment extends Vue {
   }
 
   public cancel = function () {
-    this.selectedTool = JSON.parse(this.copySelectedTool);
     if(this.selectedTool.id == null || this.selectedTool.id == 0){
       this.selectedTool = null;
     }
     else{
+      this.selectedTool = this.copySelectedTool;
       for (let l in this.selectedTool.edgesData) {
         if (this.selectedTool.edgesData[l].id <= 0) {
           this.selectedTool.edgesData.splice(l, 1);