DCWecher 3-Inch Impact Hex Bit Set, 20PCS Long Allen Wrench Drill Bit Set

3-INCH HEX DRILL BIT SET - Long hex bits help reach recessed Allen fasteners in engine bays, cabinet corners, furniture joints, appliance panels, and garage projects, 20PCS METRIC AND SAE HEX BITS - Metric: 1. 5, 2, 2. 5, 3, 3. 5, 4, 5, 6, 7, 8mm; SAE: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16 inch, S2 STEEL WITH HEAT TREATMENT - S2 steel body is heat treated for added toughness, with black phosphate finish and CNC-machined tips for cleaner fit in matching screws, MAGNETIC ALLEN BIT SET - Magnetic allen drill bits help hold matching screws while positioning, useful for overhead fastening, tight corners, bicycle parts, and one-hand starts, 1/4 HEX SHANK WITH HOLDER - Works with impact drivers, power drills, quick-change chucks, and bit holders; included holder keeps the 20-piece hex driver set grouped.