8 Double Sided Riffler Files for. Many Aspects of Woodworking & Carpentry. This is a new set of 8 double ended riffler files. Great for many aspects of woodworking and carpentry. Each measures approximately 9 3/4″ (247 mm) to 10″ (254 mm) long We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.