I love all the Diamond sanding pads that I've bought in the last couple of years, but there are just some nooks and crannies I couldn't get to with the regular-sized pads (like the joints of mug handles, small carved areas, and pitcher/teapot spouts), so I jumped at the chance to purchase the Diamond sanding file set...and these little tools are just what I needed for small, hard to reach spaces that need smoothing. I even got a set for a friend! So far, I've "finished" off the attachments of eight mugs and spouts of two pitchers to where they'll be optimal for customers to handle. The only thing more I'd want is for perhaps sanding pads on a rounded surface instead of the squared edges these files have.