Milwaukee two tool kits or "twin packs" include two power tools of the same battery range, two batteries and a charger which best suits the capacity of the included battery packs. All this gear is stored in a Milwaukee tool bag, heavy duty carry case or a PACKOUT™ box. We stock twin packs in both the M12™ 12-Volt and M18™ 18-Volt ranges, most of which now include brushless power tools and tools in the FUEL™ and ONE-KEY™ systems. A Milwaukee 2-tool kit is a great way to expand your tool collection, providing you with premium quality performance for a great price.