The GripEdge Tools 3/8" Drive RPT Low Profile Action Driver Sets, Nos. DDHBM9S, DDHBS6S, and DDSB8S, come as Metric, SAE, or Star. Each sets' bits measure just 1-1/16" or 27mm in length, allowing for greater access in recessed or tight spaces. The Drivers can be driven using standard 3/8" drive square tools or the external 11/16" (17mm) hex. These ...