2-in-1 Hex Head Slide Driver 1.5 in.
65131
Unique, patented tip slides back and forth to switch from a 1/4-Inch to a 5/16-Inch driver
Twist the thumb nut to lock tip setting
Magnetic regardless of which driver is selected
Cushion-Grip™ handle for added torque and comfort
U.S. patent 7,654,175 B2