These clippers are the best on the market. For some reason, they aren't sold in the US, so I've had to purchase them from this Canadian web-site. I just put in another order for another 6 of them, because I give them out as gifts. I know it sounds weird, but it's great to have a solid piece of equipment like these clippers and the people I've gifted them to have all appreciated it.
The edge is a little convex and it does take a little practice, but this device cuts the nails very cleanly. It's true that there's no nail file included. Still, I highly recommend these clippers.