helpers

code/game/machinery/syndicatebomb.dm

@@ -470,7 +470,7 @@
 	qdel(src)
 
 /obj/item/weapon/bombcore/chemical/attackby(obj/item/I, mob/user, params)
-	if(istype(I, /obj/item/weapon/crowbar) && beakers.len > 0)
+	if(iscrowbar(I) && beakers.len > 0)
 		playsound(loc, I.usesound, 50, 1)
 		for (var/obj/item/B in beakers)
 			B.loc = get_turf(src)

code/game/objects/items/weapons/grenades/chem_grenade.dm

@@ -382,7 +382,7 @@
 	var/unit_spread = 10 // Amount of units per repeat. Can be altered with a multitool.
 
 /obj/item/weapon/grenade/chem_grenade/adv_release/attackby(obj/item/I, mob/user, params)
-	if(istype(I, /obj/item/device/multitool))
+	if(ismultitool(I))
 		switch(unit_spread)
 			if(0 to 24)
 				unit_spread += 5