• Hollow-shaft nut driver with a standard 5/16-Inch hex socket
• Heavy-duty shaft and handle to withstand the toque 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
• Cushion-Grip handle for greater torque and comfort
• 6-Point hex socket to maximize driving contact area on the fastener

Klein's Color-Coded Hollow-Shaft Heavy-Duty Nut Driver features a fully pass through driver for driving nuts on threaded rod and prevents bottoming out. Cold forged steel wrench assist provides greater torque, especially helpful for breaking stubborn nuts and bolts free. The handle is color-coded and dome-stamped to easily identify the common 5/16-Inch hex size needed for the job.