With this high-quality special pro stitching groover from Oka, cut a groove down the edge of your leather for a smooth, professional-looking stitching line. This tool comes with a metal edge guide that can be adjusted and locked in place to assist you in producing groove lines of various widths. This tool can be used free-hand to make patterns and designs in your leather once the edge guide is removed. This tool comes with three different blades that can be swapped out using the Allen key provided. The wood handle of this tool comes in a walnut finish, giving it a distinctive appearance. Quality made in Japan.This stitching groover is used to make a groove in your leather so that your thread will be flush with the leather, keeping it from tearing or wearing. This tool may also be used to make stitching guides for your stitch punch or a decorative line to enhance the look of your leather items. This groover is a fantastic addition to your leather tools and can be used by both left and right-handed people.This set includes:• Allen Key• Jeweler's Rouge• Spoon Shaped Blade• Grooving Blade• Divider BladePlease note, while the handle of this item has been fashioned to appear as walnut, the actual wood itself is maple.The blades are small and sharp, keep out of the reach of children.