I've been using my M12 Milwaukee drill and love it but ever since I tried out an impact driver, I can't get off my mind how amazing they are at fastening and unfastening screws and bolts ... The only thing is that they are loud as hell! I'd love to stay 12v (for weight reasons). Are there any ones that are quieter? The one I tried out was a 12v Bosch (loud!!!) Any thoughts?