The Malco Products 7mm and 8mm C-RHEX Drivers are cleanable, reversible magnetic hex drivers available in three lengths: 2", 4", and 6". Users can quickly change between 7mm and 8mm hex sizes with Malco's exclusive, dual-sided magnetic hex drivers. The reversible hex socket fits over a 1/4" magnet-tipped, ball-locking hex shaft, and can be quickly reversed to change sizes. The 7mm side is designed with a slim profile to gain easier access in tight spaces, for increased productivity. The tested torque of the reversible hex chuck driver design is equal to one-piece drivers, the company says.