diff --git a/code/game/objects/items/tools/weldingtool.dm b/code/game/objects/items/tools/weldingtool.dm
index 4d508d05597..e09ef51ebe4 100644
--- a/code/game/objects/items/tools/weldingtool.dm
+++ b/code/game/objects/items/tools/weldingtool.dm
@@ -33,15 +33,21 @@
 	wound_bonus = 10
 	bare_wound_bonus = 15
 	custom_materials = list(/datum/material/iron=70, /datum/material/glass=30)
-	///Whether the welding tool is on or off.
+	/// Whether the welding tool is on or off.
 	var/welding = FALSE
-	var/status = TRUE //Whether the welder is secured or unsecured (able to attach rods to it to make a flamethrower)
-	var/max_fuel = 20 //The max amount of fuel the welder can hold
-	var/change_icons = 1
-	var/can_off_process = 0
-	var/burned_fuel_for = 0 //when fuel was last removed
-	var/acti_sound = 'sound/items/welderactivate.ogg'
-	var/deac_sound = 'sound/items/welderdeactivate.ogg'
+	/// Whether the welder is secured or unsecured (able to attach rods to it to make a flamethrower)
+	var/status = TRUE
+	/// The max amount of fuel the welder can hold
+	var/max_fuel = 20
+	/// Whether or not we're changing the icon based on fuel left.
+	var/change_icons = TRUE
+	/// Used in process(), dictates whether or not we're calling STOP_PROCESSING whilst we're not welding.
+	var/can_off_process = FALSE
+	/// When fuel was last removed.
+	var/burned_fuel_for = 0
+
+	var/activation_sound = 'sound/items/welderactivate.ogg'
+	var/deactivation_sound = 'sound/items/welderdeactivate.ogg'
 
 /obj/item/weldingtool/Initialize(mapload)
 	. = ..()
@@ -111,7 +117,7 @@
 
 /obj/item/weldingtool/proc/explode()
 	var/plasmaAmount = reagents.get_reagent_amount(/datum/reagent/toxin/plasma)
-	dyn_explosion(src, plasmaAmount/5, explosion_cause = src)//20 plasma in a standard welder has a 4 power explosion. no breaches, but enough to kill/dismember holder
+	dyn_explosion(src, plasmaAmount/5, explosion_cause = src) // 20 plasma in a standard welder has a 4 power explosion. no breaches, but enough to kill/dismember holder
 	qdel(src)
 
 /obj/item/weldingtool/attack(mob/living/carbon/human/attacked_humanoid, mob/living/user)
@@ -171,19 +177,17 @@
 
 	update_appearance()
 
-
-// Ah fuck, I can't believe you've done this
 /obj/item/weldingtool/proc/handle_fuel_and_temps(used = 0, mob/living/user)
 	use(used)
 	var/turf/location = get_turf(user)
 	location.hotspot_expose(700, 50, 1)
 
-// Returns the amount of fuel in the welder
+/// Returns the amount of fuel in the welder
 /obj/item/weldingtool/proc/get_fuel()
 	return reagents.get_reagent_amount(/datum/reagent/fuel)
 
 
-// Uses fuel from the welding tool.
+/// Uses fuel from the welding tool.
 /obj/item/weldingtool/use(used = 0)
 	if(!isOn() || !check_fuel())
 		return FALSE
@@ -199,7 +203,7 @@
 		return FALSE
 
 
-//Toggles the welding value.
+/// Toggles the welding value.
 /obj/item/weldingtool/proc/set_welding(new_value)
 	if(welding == new_value)
 		return
@@ -208,7 +212,7 @@
 	set_light_on(welding)
 
 
-//Turns off the welder if there is no more fuel (does this really need to be its own proc?)
+/// Turns off the welder if there is no more fuel (does this really need to be its own proc?)
 /obj/item/weldingtool/proc/check_fuel(mob/user)
 	if(get_fuel() <= 0 && welding)
 		set_light_on(FALSE)
@@ -217,7 +221,7 @@
 		return FALSE
 	return TRUE
 
-//Switches the welder on
+// /Switches the welder on
 /obj/item/weldingtool/proc/switched_on(mob/user)
 	if(!status)
 		to_chat(user, span_warning("[src] can't be turned on while unsecured!"))
@@ -226,7 +230,7 @@
 	if(welding)
 		if(get_fuel() >= 1)
 			to_chat(user, span_notice("You switch [src] on."))
-			playsound(loc, acti_sound, 50, TRUE)
+			playsound(loc, activation_sound, 50, TRUE)
 			force = 15
 			damtype = BURN
 			hitsound = 'sound/items/welder.ogg'
@@ -237,10 +241,10 @@
 			switched_off(user)
 	else
 		to_chat(user, span_notice("You switch [src] off."))
-		playsound(loc, deac_sound, 50, TRUE)
+		playsound(loc, deactivation_sound, 50, TRUE)
 		switched_off(user)
 
-//Switches the welder off
+/// Switches the welder off
 /obj/item/weldingtool/proc/switched_off(mob/user)
 	set_welding(FALSE)
 
@@ -257,11 +261,11 @@
 /obj/item/weldingtool/get_temperature()
 	return welding * heat
 
-//Returns whether or not the welding tool is currently on.
+/// Returns whether or not the welding tool is currently on.
 /obj/item/weldingtool/proc/isOn()
 	return welding
 
-// If welding tool ran out of fuel during a construction task, construction fails.
+/// If welding tool ran out of fuel during a construction task, construction fails.
 /obj/item/weldingtool/tool_use_check(mob/living/user, amount)
 	if(!isOn() || !check_fuel())
 		to_chat(user, span_warning("[src] has to be on to complete this task!"))
@@ -273,7 +277,7 @@
 		to_chat(user, span_warning("You need more welding fuel to complete this task!"))
 		return FALSE
 
-
+/// Ran when the welder is attacked by a screwdriver.
 /obj/item/weldingtool/proc/flamethrower_screwdriver(obj/item/tool, mob/user)
 	if(welding)
 		to_chat(user, span_warning("Turn it off first!"))
@@ -287,6 +291,7 @@
 		reagents.flags |= OPENCONTAINER
 	add_fingerprint(user)
 
+/// First step of building a flamethrower (when a welder is attacked by rods)
 /obj/item/weldingtool/proc/flamethrower_rods(obj/item/tool, mob/user)
 	if(!status)
 		var/obj/item/stack/rods/used_rods = tool
@@ -373,8 +378,8 @@
 	inhand_icon_state = "exwelder"
 	max_fuel = 40
 	custom_materials = list(/datum/material/iron = 1000, /datum/material/glass = 500, /datum/material/plasma = 1500, /datum/material/uranium = 200)
-	change_icons = 0
-	can_off_process = 1
+	change_icons = FALSE
+	can_off_process = TRUE
 	light_range = 1
 	toolspeed = 0.5
 	var/last_gen = 0