Leather French Edgers and Gouges
Gouges are used to remove leather for a few purposes. V-gouges and U-gouges remove leather from the flesh side for easier folding. Saddler's gouges are used to remove leather for inlaying lacing or buckstitching.
Improved French Edgers
Improved French edgers were made by CS Osborne and are fairly rare. They are used for edge skiving and have one leg that is below the cutting edge to act as a guide.
Round Bottom French Edgers
Round Bottom French Edgers are a little rarer to find. They cut a rounded profile on the bottom and are good for heavy edge beveling or to trim welts.
French Edgers are pushed and make a flat cut. They are used to cut miters for box corners, channels for folding, and can be used to thin or skive edges.