Mayhew Tools 37316 1/2-Inch Pneumatic Bolt Breaker The Pros Know Founded in 1856, Mayhew Steel Products (Mayhew Tools) is the oldest punch and chisel manufacturer in the United States. As we’ve grown 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. Mayhew is ISO 9001:2015 Certified. The workhorse of the MayhewPro Series, the Dominator Line of pry bars, chisels, scrapers, and specialty tools are designed to take punishment just as easily as they dish it out. Visit the Store MayhewPro offers a complete line of products for use with pneumatic air hammers, including scrapers, punches, and hammers that are available in assorted blades and lengths. Visit the Store American-made and available in a complete assortment of styles and sizes, Mayhew has the rugged punches your particular application calls for. Visit the Store Our American-made chisels deliver the fast, clean cuts and defined marks that your applications call for. Visit the Store All bit sets feature a convenient color coded storage rail that keeps them organized and easily identified and ready for use. Visit the Store Visit the Store - Attaches to air hammer to provide vibration while removing stubborn/frozen fasteners or torx bolts/nuts - Standard .401 turn type Parker shank for air guns - Square drive for use with impact sockets - Black oxide finish for additional rust protection - Made in the USA - - - 5.6 ounces 4.79 x 0.4 x 0.4 inches