This is the Associated Factory Team T-Handle 1/4" Ratchet Driver. This Factory Team T-Handle Ratchet Driver makes installation and removal of screws and bolts easier than ever with its comfortable handle, long reach, and ratchet action.
Easy to use! Insert your 1/4" hex head or screwdriver bit (available separately) into the tip, adjust the switch for clockwise or counter-clockwise action, then turn the handle.
Shaft length: 48mm
Handle width: 85mm
Overall diagonal length: 129.5 mm.