I tried over and over to clip or file my westies nails with no success...she just hated me holding her paws. I had to bring her to the professionals, sometimes the groomer, sometimes the Vet and they too had difficulty, but that wasn't cheap. I think the fact that this device is so quiet it doesn't frighten her. It doesn't file down quickly, so I do it a little at a time...but at least I can get the job done! If I can make a suggestion, I think the Dremel should be a bit thicker in grit.