Klein's Magnetic Color-Coded Hollow-Shaft Heavy-Duty Nut Driver features fully pass through drivers for driving nuts on threaded rod and prevents bottoming out. Rare-Earth metal magnet is protected by a brass inner sleeve and strike plate to prevent the magnet from falling out or being damaged by sharp edge threaded rod. Cold forged steel wrench assist provides greater torque. Color-coded handle and dome-stamped to easily identify the common 1/2-Inch hex size needed for the job.
- Hollow-shaft nut driver with a standard 1/2-Inch hex socket 
- Heavy-duty shaft and handle to withstand the torque for demanding applications 
- Through-handle, full hollow shaft for torquing hex nuts onto threaded rod of any length 
- Cold-forged steel wrench-assist hex shaft for heavy-duty applications 
- Color-coded and dome-stamped handle for easy identification of different sizes 
- Rare-Earth magnet protected by a brass inner sleeve and strike plate to prevent damage to the magnet 
- Cushion-Grip handle for greater torque and comfort 
- 6-Point hex to maximize driving contact area on the fastener