Product features: 1 Total length: 65mm/2 "(approximately) 2 Specially designed for 1/4 "hexagonal drill bits, appropriate for various short replacement chucks, flashlights, and screwdrivers 3 The bell fashioned and magnetic hexagonal inserts enable the drill bit to be firmly fixed in place, making an allowance for faster set up four Made of heat-treated chromium vanadium steel, it has ultra high hardness, good put on resistance, durability, and lengthy carrier life 5 Suitable for installation in hexagonal instruments reminiscent of pneumatic screwdrivers, electrical screwdrivers, pneumatic drills, electrical drills, and guide screwdrivers Parameters: Material: Vanadium chromium steel Size: 65mm Specifications: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm The packaging entails A: 6-10mm sleeve * five Packaging includes B: 6-14mm sleeve * 9 The packaging entails C: 6-19mm socket * 14 Note: Due to handbook measurement, please enable an error of 0-1cm Due to differences between various monitors, photographs might not mirror the particular color of the product