Mayhew Tools 17355 Hammerless Tool 5/16-Inch Cold Chisel and 5/16-Inch Hammer, Multicolor, One Size Mayhew Hammerless tools are a unique set of spring powered tools which have the potential to deliver up to 3500-pounds of striking force. Designed for wood and metal applications. Used to mark,cut,start and set all without the use of a hammer. Works with precision and accuracy; place tool on work surface and pull back spring and release,avoiding the chance of miss-hits and glancing blows. Made in the USA and backed by a full lifetime. Founded in 1856,Mayhew Steel Products (Mayhew Tools) is the oldest punch and chisel manufacturer in the United States. As we?ve grown from a small tool house to the industry leader,there?s only one thing that hasn?t changed?our dedication to quality,reliability,and craftsmanship. That?s why we?ve become the tool of choice for certified technicians and professional mechanics across the country,and have found a home in the belts of do-it-yourselfers as well. Over time our product line has grown but our passion for manufacturing quality hand tools continues as we serve the Industrial,Automotive and Hardware industries. Mayhew is ISO 9001:2015 Certified. Features Designed for wood and metal applications Cold chisel cuts rivet heads, mild steel screws and copper wire Potential to deliver up to 3500lb of striking force without the use of a hammer Lifetime Warranty Made in the USA Power source type: Hand Powered USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.