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code/game/objects/items/devices/radio/headset.dm

@@ -278,7 +278,7 @@ GLOBAL_LIST_INIT(channel_tokens, list(
 			to_chat(user,"<span class='notice'>You upgrade [src].</span>")
 			bowmanize()
 			qdel(W)
-	if(istype(W, /obj/item/screwdriver))
+	if(W.tool_behaviour == TOOL_SCREWDRIVER)
 		if(keyslot || keyslot2)
 			for(var/ch_name in channels)
 				SSradio.remove_object(src, GLOB.radiochannels[ch_name])

code/game/objects/items/devices/radio/intercom.dm

@@ -23,7 +23,7 @@
 	freerange = TRUE
 
 /obj/item/radio/intercom/ratvar/attackby(obj/item/I, mob/living/user, params)
-	if(istype(I, /obj/item/screwdriver))
+	if(I.tool_behaviour == TOOL_SCREWDRIVER)
 		to_chat(user, "<span class='danger'>[src] is fastened to the wall with [is_servant_of_ratvar(user) ? "replicant alloy" : "some material you've never seen"], and can't be removed.</span>")
 		return //no unfastening!
 	. = ..()
@@ -57,7 +57,7 @@
 		. += "<span class='notice'>It's <i>unscrewed</i> from the wall, and can be <b>detached</b>.</span>"
 
 /obj/item/radio/intercom/attackby(obj/item/I, mob/living/user, params)
-	if(istype(I, /obj/item/screwdriver))
+	if(I.tool_behaviour == TOOL_SCREWDRIVER)
 		if(unfastened)
 			user.visible_message("<span class='notice'>[user] starts tightening [src]'s screws...</span>", "<span class='notice'>You start screwing in [src]...</span>")
 			if(I.use_tool(src, user, 30, volume=50))
@@ -69,7 +69,7 @@
 				user.visible_message("<span class='notice'>[user] loosens [src]'s screws!</span>", "<span class='notice'>You unscrew [src], loosening it from the wall.</span>")
 				unfastened = TRUE
 		return
-	else if(istype(I, /obj/item/wrench))
+	else if(I.tool_behaviour == TOOL_WRENCH)
 		if(!unfastened)
 			to_chat(user, "<span class='warning'>You need to unscrew [src] from the wall first!</span>")
 			return

code/game/objects/items/devices/radio/radio.dm

@@ -333,7 +333,7 @@
 
 /obj/item/radio/attackby(obj/item/W, mob/user, params)
 	add_fingerprint(user)
-	if(istype(W, /obj/item/screwdriver))
+	if(W.tool_behaviour == TOOL_SCREWDRIVER)
 		unscrewed = !unscrewed
 		if(unscrewed)
 			to_chat(user, "<span class='notice'>The radio can now be attached and modified!</span>")
@@ -384,7 +384,7 @@
 
 /obj/item/radio/borg/attackby(obj/item/W, mob/user, params)
 
-	if(istype(W, /obj/item/screwdriver))
+	if(W.tool_behaviour == TOOL_SCREWDRIVER)
 		if(keyslot)
 			for(var/ch_name in channels)
 				SSradio.remove_object(src, GLOB.radiochannels[ch_name])