Unbreakable handle
The new Groz Indestructible handle hammer from Redashe is claimed to never break no matter what you do to it – whether you miss a blow or over strike.

Tested with over 36,000 strikes
without failure, the Indestructible handle is made with spring steel bars that run through
the handle and are locked in the hammer head using a steel plate. A special bonding process ensures
that the head never gets loose from the handle.
The ergonomically designed rubber handle is said to significantly reduce vibration giving less fatigue. Shock resistant, the handle hammer also meets ANSI specifications “Hand
Tools – Heavy Striking Tools Safety Requirements” and BS 876 specifications for
material, hardness and performance.