KKmoon 105 Degree Right Angle Quick Change Driver Drilling Extension Shank Screwdriver Magnetic 1/4 Inch Hex Socket Good Close Corner Tool Universal Joint Brand new and durable for daily use. Quick and easy screwdriver bit change. Good rugged construction at a reasonable price. Apply to all electric drill and socket wrench, which allows to extend to where drill can't reach to. Built-in strong magnet for good holding power, accepts all 1/4" standard hexagon shank bits.