Picquic 88152B Hex-Calibre? SAE Multi-Bit Screwdriver, Plastic Handle – Each

Comes standard with seven 3″ long hex power bits
1/4″ hex power bits ideal for use in drills and impact drivers
Precision-machined power bits for reliable bit-to-screw fit
Aircraft alloy shank with hex bolster that receives a 7/16″ wrench for extra torque
Rare earth magnet firmly holds working bit in shank