The GripEdge Tools 3/8" Drive RPT Metric & SAE Long Ball Hex Driver Sets, Nos. BHBM6LS and BHBS6LS, feature Rounding Prevention Technology that provides up to 50% more torque on new fasteners compared to standard tools. The metric set, No. BHBM6LS, includes sizes 4mm, 5mm, 6mm, 7mm, 8mm, and 10mm, while the SAE set, No. BHBS6LS, includes 5/32", 3/16", 7/32", 1/4", 5/16", and 3/8". RPT Ball Hex geometry allows up to a 22.5-degree pivot angle. Each bar is formed from S2 steel and precision-machined to reduce thickness and increase access to hard-to-reach areas, and each socket has an overall length of 6". The sockets feature large, stamped, ink-filled size markings and come in an EVA foam tray with size markings.