ANEX AKL-280E Drill Chuck, Bit, Replaceable Type,

Converts an electric screwdriver to a drill screwdriver. Round shank for gripping Can be used for drilling and polishing with axis grindstone Uses a key to open and close Shank can be replaced even if the shaft breaks. Set Includes: Main unit, chuck handle, single head bit (+2 x 53). Chuck shaft diameter range: 0.06 - 0.5 inches (1.5 - 13 mm) Total length: 4.6 inches (117 mm) Shank shaft diameter: 0.25 inch (6.35 mm) hex shaft Body Width: 1.7 inches (42 mm) Shank compatible size: 0.25 inch (6.35 mm) hex shaft, total length 2.1 inches (53 mm) and above. Packaging: Card/Blister Pack Set Includes: Drill chuck unit, both head + 2 x 55 screwdriver bits (shaft), chuck key Chuck shaft diameter range: 0.06 - 0.5 inches (1.5 - 13 mm)