CRL Offset Hex Bit Driver with Four Screwdriver Tips. The CRL Offset Bit Driver lets you fasten or remove screws located in channels, under wedges, or in areas where any regular screwdriver cannot fit. The low profile, angled head has hardened steel gears that are lubricated and sealed for a lifetime of service. The standard 1/4 (6.4 mm) Hex Insert Bits.