Function: A flexible 11.6 inch extension bar and 105 degree right angle drill bit attachment and 105 degree 1/4 inch right angle drill bit extension.< /li> Material: drill Chrome vanadium alloy steel right angle drill bit with magnetism; Steel + rubber extension. Bit Sizes Flexible angle extension bit: 11.6 x 1/4 in. 105 degree right angle drill bit attachment: 2.16 x 1.25 in. Wide Use: Right angle shank is standard 1/4", you helps get out of opportunities when you need power but get stuck at full angles;flexible extension tip is universal in all directions and lets you get into those tough spots Notice These tools are ideal for light, slow speed/screw drilling such as cordless drills, ratchet drivers, etc. . Flexible extension bar: Length: 11.8 inches Material: high carbon steel + plastic Color: black Hex shank: 6.35 mm (1/4 inch) Inner hex head: 6.35 mm (1/4 inch) Can be connected to an electric drill and a manual wrench, serving as a wrench to extend where the drill cannot 2pcs 105