The Klein 66320 Pin Punch is 4-1/4-Inch long with a 1/16-Inch diameter point. It is made from high-carbon steel for durability with a precision-ground shank. It is also heat-treated for added strength and hardness at the working end and features a corrosion-resistant black finish. Overall Length: 4-1/4-Inch. Point Diameter: 1/16-Inch. Weight: 0.05-Pound.