Product Made of high carbon steel and high quality wood, the American type grooving is exquisitely finished, it is a very good V-shaped grooving. The V-type groover can adjust the length of the cutter head to carve different depth grooves; after mastering, the groove is nice and fast. The internal V-shaped retractable cutter head controls the width of the groove, the telescopic wheel controls the expansion of the cutter head, and the cutter head can retract the groove of different width. The rotating thread allows the depth of the thrust groove to be adjusted. When the rotation is tightest, the leather surface pushed by the push groove is the most loose, and the groove of the push leather surface is the shallowest. The edge of the cutter is sharp, the quenching hardness of the steel is high, and the groove is smooth. Specification: Item Type: V-Seam GrooveMaterial: High Carbon Steel + Wood Total Length: 160mm/6.3inch Cutting Width: 2mm/0.08inch Handle Diameter: 24mm/0.94inch Package list: 1 x V Groover