High-quality chrome-vanadium alloy steel: The corner tool is made of high-quality chrome-vanadium alloy steel, which provides a good, effective grip, is easy to use and durable. Ergonomic handle: the corner tool has an ergonomic ABS handle that does not heat up during use. Use your current impact driving force to make closer contact while increasing the power of the gear. Strong magnet: The angle device has a powerful built-in magnet, which has good clamping force and can be quickly and easily replaced with the screwdriver bit. 90° right angle: 90° right angle can change the direction of the 90 degree angle bit and tighten screws that are usually difficult to tighten. Application: The angle device is suitable for all common 1/4 inch hex shank drill bits, which can be connected by hand with electric drills or wrenches, and can be stretched into a narrow, hard-to-reach space to tighten screws and nuts.