Black's file

(redirected from Blacks file)

Black's file

hand-held instrument terminating in a minute file (rasp); it is placed within the nail sulcus to abrade outer border of a nail plate, or aid onychophosis removal
References in periodicals archive ?
A Blacks file is ideal for tackling this problem allowing access to the side of the nail.
It is crucial that the lateral edges of the nail are exposed and trimmed back with a Blacks file to reduce pressure on surrounding skin, inflammation and infection.
Not only did Blacks file suits, but year after year, thousands of parents, students and civic leaders also took to the streets to protest racism and segregation in their schools.