Segomo Tools 27 Piece 3MM 1 8 Inch (Letters: A Z) Professional Letter Punch Stamp Set (For Leather, Wood, Copper, Brass, Aluminum, Mild Steel) LETTER18 Welding Pliers Extra high torque capacity for foam mats supplied in Extra high torque capacity for the size and weight achieved through the "Jumbo" clutch mechanism with three forward steps (Max Torque: 210 280 501 ft lb) and reverse (Max Reverse Torque: 568 ft lb) 7 m s squared Made from premium chrome vanadium steel with differential heat treatment for optimal durability and performance The stamping end has a hardness of 57 60 HRC for producing high quality imprints