Extra large Forming Punch has sufficient mass for complete control, lets you apply just the right amount of striking force to precisely bend and shape bolt handle to final contour. With a little practice you can forge the handle so nicely that only a bit of finishing is needed. Punch has curved, removable, hardened tip that retains its shape with repeated use. Complete instructions explain the entire process. Mfg: Brownells SPECS: Blocks - Steel, blue finish. 3A 1/2" (8.9cm) long. 2" (5cm) high. Punch - 1" (2.5cm) diameter, 8-7/8" (22.5cm) long.