Practical Combination: Our leather chisels come with 4 pcs leather tools of different sizes, more suitable for leather processing, punching, and other work. Tip: Manual measurement may have some errors, please understand. Leather Stitching Punch Sizes: DIY diamond lacing stitching chisel has 4 regular sizes, 1/2/4/6 prong, each size of leather craft punching tool has an applicable scope, you can choose the size according to your needs. Easy to Operate: Improved design, leather stitching punch is designed with dents on the side, which can increase friction, prevent slippage, and hold comfortably, making your stamping process safer and more convenient. Good Performance: The pointed prongs of the leather chisel are evenly distributed, so they are good to create clean and consistent holes on the leather, good assistance for completing your leather crafting work. Application Recommendations: 1 prong is used to fill the position at right angles or to punch and position separately. 2 prong is used for punching holes in curves or short distances. 4 prong is a commonly used specification for shorter straight lines, used for straight line drilling. 6 prong is often used for cutting for a long time and is the most used specification.