Stitching groover

A stitching groover is a small hand tool with an adjustable, blade-tipped arm that cuts a shallow, U-shaped channel a set distance in from the edge of a piece of leather. The groove gives the stitch line a defined path to follow and a slightly recessed home to sit in once sewn.

Recessing the stitches below the leather's surface protects them from abrasion as the finished item is used, since a stitch line sitting flush or proud of the edge takes more direct wear from rubbing against pockets, tables, or other surfaces. It also gives the finished seam a clean, professional look, with the thread sitting in a neat trough rather than lying flat on top of the leather.

Setting the groover's distance from the edge to match your planned stitch line, then testing the depth on scrap leather first, avoids cutting a channel too deep, which can weaken the leather along the stitch line. A common mistake is grooving heavy structural leather too deep in an attempt to fully bury the stitches, when a shallow groove that just nestles the thread is usually enough.