I bought this to replace an 18 volt drill I sold almost 20 years ago. There wasn't enough electricity to install a dog guard in my hallway. For years everyone told me it wasn't very good, but I didn't care, I used it around the house, hanging curtains and other small household items. I think after 20 years I've finished school and I need something better. Also, I was in college 20 years ago and couldn't afford a good drill. I honestly didn't expect this drill to be so strong and I broke the screw the first time I used it. So I solved this problem, got down to business and hopefully now have a better understanding of this wonderful tool. He does his job and I love him. It's exactly the same as my other drill except it works much better.