【Wide Application】Can punch the eye in a wide range of hammers from about 1.5 pounds to 12 pounds sledge size. Also can be used to punch holes in any stock over 3/8-inch thick for traditional joinery work and pass-throughs. Used with a striker, not a power hammer tool. 【High Performance】Specially designed to help you easily punch hammer eyes, allows you hot-forging more relax and quicker to save your time, energy and money. You can use this hammer eye punch to make any tools that needs a handle like flatters, fullers, top hot cuts, hammers, set hammers, etc. The eye punch is the foundation for tool making. 【Practical Structure】This punch tool has a single taper eye with a friction fit handle. This style of handle fit helps prevent direct vibration transference from the tool to the handle, helps the handle hold up longer and makes it more comfortable to use. 【Superior Material】Forged from premium 4140 steel, high hardness, good toughness, ensures long-term reliable service. Top quality wooden handle provides superior tolerance and breaking stress for adverse environmental conditions. 【100% Satisfaction Guarantee】If you're not satisfied with our Blacksmith Hammer Eye Punch, simply return it for getting refund in 30 days. While you have any questions about our products, please feel free to contact us and we will provide the best service. Always buy confidently in Bonbo!