This is a free-hand edge seam groove with 3 types of blade. Tool size: 14.2cm length.
Blade width: #0-1.2mm, #11.5mm. Main feature: edge seam groove. Double bolts make an adjustable and removable spacer arm that provide the regular and extra lifting hand experience. Concave for index makes ergonomic rationalization and applied comfort. Color: as shown in the last image (black).
The groove is mainly used for edge seam groove and surface leather decoration. Unlock the bolts to adjust the arm of the spacer or replace the blade according to your request before using it.
Keep the arm of the spacer near the edge of the leather, place the index finger in the concave, then you can cut the grooves in any depth that depends on the pressure exerted while grooving. To maintain the metal parts, please keep them dry after being used. Metal parts will be rusty if they are put in a humid environment for a long time, you can use glass paper or rust remove the dough to sand it down.
When the blade is blunted, you can use a strop knife board or metal polishing paste to polish it. If the method of predentation does not work, please try grinding or glass paper for resharping.