Stable plastic box containing screwdriver with Rapidaptor quick-release chuck for fast, tool-free change between drill, countersinking or screwdriving bits and high quality, ergonomic bit holder equipped with a magnet. Includes 6 bits for countersinking and deburring. Hexagonal shaft ensures very good power transfer. Bits provide rattle and score-free working with excellent chip removal and durability. 1/4" drive. Ideal for mobile repair and assembly work. Suitable for power screwdrivers or in electric drill chucks. Chrome Molybdenum Steel Blades Ergonomic Handle Rapidaptor Quick-Release Chuck For Deburring & Countersinking Suitable for Power Screwdrivers & Electric Drills Chrome Molybdenum Steel Blades Ergonomic Handle Rapidaptor Quick-Release Chuck For Deburring & Countersinking Suitable for Power Screwdrivers & Electric Drills