Features: ● Hexagonal shank spiral groove to explore flexible drilling expansion, PP plastic, carbon steel, electromagnetic steel. ● The combination of exquisite craftsmanship and high-quality metal and steel materials has become a quality-guaranteed product. ● It can bend, twist and turn in many different angles. You can drill holes in a small space and in various spaces without requiring you to manually perform flexible installation work. Let this flexible bit extension tool help you solve more problems quickly. ● The inner shaft has a wide range of rotation and stable quality. When the inner shaft rotates, the black flexible for shell protects your hands from damage and completes your work perfectly. ● The 6 pieces have different sizes and are easy to replace. Explore flexible drill bit extensions for other wrenches, electric screwdrivers, pneumatic screwdrivers, torque drills, and electric screwdrivers. Flexible drill bit extension screwdriver, with multiple application scenarios. ● There are two types of M35 cobalt plating and M35 super-industrial TiAIN. M35 (HSSCO) high-quality cobalt-plated high-speed steel, suitable for stainless steel, iron, aluminum, etc.6.35mm hexagonal shank compound tap, two types are available. Specifications: Material:Steel Color: Golden Shank Diameter： 6.35mm/0.25inch Package Includes: 1xDrilling Compound Tap note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.