A fantastic high quality saving set these robust ball and peen or engineering hammers are suitable for shaping deburring beating punching and riveting in metals all of the hammer heads are made of die forged steel hardness hrc 45 55 the hammer handles are made of durable wood includes 5 pieces hammer different weights and lengths 220 g 28 cm 340 g 31 cm 450 g 33 cm 670 g 35 cm 900 g 38 cm