Seiwa Pro Tool Diamond Hole Punch, 6mm width, 3-tooth. Brand new, unused. Total length approximately 110mm. Features: 1. "Quenched" for no blade tip "bending or deformation." 2. "Carefully polished" blades for "exceptional sharpness." 3. "R" grooves on the blades provide strength and durability, allowing holes to be punched easily even in thick leather. 4. The sharp blade tips create beautiful diamond-shaped holes. 5. The handle has a checkered non-slip grip for secure handling. \* The spacing between the blades is expressed in width (pitch/mm). It is also stamped on the handle. SEIWA Pro Tool Diamond Hole Punch 6mm width, 3-tooth, hand-sewing hole-punching tool. This is a tool for punching holes for hand-sewn stitches.