When replacing the cylinder stop or hand in a S&W revolver, you may have to open up the 'window' in the frame to accept the new part. These double-ended, offset files, will do the job. SPECS: Cylinder Stop File, 6" (15.2cm) long, fits all
S&W frames. Hand Window File, 6-3/4"
(17.1cm) long, one end for J Frame, the other for K, L, and N. All
are #2 cut.