90 degrees to be used for twisting screws and nuts, easy to use, suitable for all electrodes and wrenches Sizes: Flexible angle extension tip: 11.6 x 1/4 inch. 105 degree right angle drill bit attachment: 2.16 x 1.25 inch Extensive use: can connect to drill, rechargeable drill or hand wrench, extend their reach up to to inaccessible stenosis, twist screws and nuts NOTE: 105°C designs for tight spaces increase power of a cordless screwdriver - 100 in/lbs. torque, 400 rpm. 3-in-1 set: a 105 degree right angle drill bit attachment, a 105 degree 1/4 inch cylindrical shank electric drill extension and one 11.6 inch flexible extension bar 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) Mainly for computer case, cabinet, furniture, electrical appliances, etc. Used for ordinary clamp electric drill, and can also be used with electric screwdriver (1/4 attachment) 1/4" Hex Driver