Quality Material: Chromium vanadium alloy steel body, have strength and wear resistance, which are strong, stable, and not easy to break so that you can keep them for a long time Detachable ABS Handle: Right Angle Driver can be equipped with handles on both sides to prevent shaking, support arm for secure grip. The end of the handle also unscrews, so you can store a bit inside for added convenience. Never Wobble: Self-lock mechanism and quick release system allows you to quickly install and can hold bits firmly, non-slip. When you're ready to eject the bit, simply push the sleeve up and you're set to swap it out! 90 Degree Angle: The 90-degree angle adapter allows for excellent access when driving screws or drilling holes in narrow and hard-to-reach areas, suitable for use in different areas, more practical. Application: The versatile right angle attachment accepts all 1/4 inch hex shank accessories. Made for impact fit applications. Works with cordless drill and impact driver up to 18 volts or Up to max.2000 RPM