Indestructible handle is made up of (4) spring steel bars that run all the way through the handle Bars are locked with the hammer head using steel locking plates ensuring that the head never gets dislodged Ergonomic rubber grip handle absorbs shock and vibration reducing fatigue Special bonding process ensures that head never gets loose from the handle Hammer head is forged from special steel and is induction case hardened to 52 to 56 HRC for extended life