It is a edge of the free seam groove hand with 3 types of blade. Material: blade: 304 steel + metal part: h62 arms + handle part: engineer wood. Tool size: 14.2cm length. Blade width: #0-1.2mm, #11.5mm. Main feature: edge seam groove.
The double bolts make a removable adjustable and removable spacer arm that provide the extra experience regular and free of hand. Concave for index makes ergonomic rationalization and applied comfort.
Color: as shown in the 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 the strop knife board or metal polishing paste to polish it.
If the dosen't pre-pass method works, please try the grinding wheel or the glass paper for resharpening.