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code/game/objects/items.dm

@@ -112,6 +112,10 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 
 	var/tool_behaviour = NONE
 	var/toolspeed = 1
+	//Special multitools
+	var/buffer = null
+	var/show_wires = FALSE
+	var/datum/integrated_io/selected_io = null  //functional for integrated circuits.
 
 	var/reach = 1 //In tiles, how far this weapon can reach; 1 for adjacent, which is default