File Length: 12"Max File Width: 1-1/8"File Shape: Half RoundFile Cut: SmoothPattern: AmericanMost Effective For Putting A Keen Edge On Knives, Shears, Saw And Other Blades, Also For HoningUsed On Concave, Convex And Flat SurfacesRounded On 1 Side, Flat On The Opposite, Both Sides Are Double-Cut