just go inside of the cave near mauville called NEW MAUVILLE. it can only reach by Surfing from route 110 under the seaside cycling road to a small island east of the overhead path.
Magnemite,Voltorb,and Magneton.
magnetons cannot be found in the wild, however you can find a magnemite in new mauville just outside of mauville
You can only find a Metal Coat in Pokémon Sapphire if you steal it from wild Pokémon that will be holding it such as Magnemite, Magneton, Steelix, Beldum, Metang and Metagross.
You can get a magnemite in New Mauville.
there are many MANY Pokemon that can use the hm flash in Pokemon sapphire. the following Pokemon can: grovile( treeko),kirlia(ralts)shroomish, eletrike, Roselia, plusle, munun, magnemite, voltorb and many more
In Sapphire, there is Electrike, Manectric, Pikachu, Pichu(breeding), Raichu(evolve), Voltorb, Electrode, Plusle, Minun, Magnemite, Magneton, Chinchou, Lanturn, Zapdos(trade from FireRed or LeafGreen), and Jolteon(trade from FireRed and LeafGreen).
Magnemite evolves into Magneton starting at level 30.
go to mount.CORNET and level magnemite up, then it evolves
In Fire Red Magnemite is at the Power Plant.
Magnemite evolves into Magneton on level 30.
I would say magnemite because its also a steel type which is helpful when fighting normal types and other Pokemon types besides ground types.
Magnemite evolves into Magneton at level 30.