The Hilti - 2324274 SID 4 is a cordless impact driver that was once made by the name of this company and it has excellent features. It is a truly cordless drill set, which makes it super portable and flexible. But it is designed to be rugged — lithium-ion batteries notwithstanding. Which makes it the perfect device for any professional or weekend warrior looking to get some quick drilling and driving completed. It is built quite well so you can get some longevity out of it, and its pretty versatile in that a lot of people use thinners for multiple applications.