General -Hex shank 1/4'' (6.35 mm) **** Flexible 105 turn left and right **** Material: chrome vanadium steel Practical for fast driving nuts, bolts and fasteners, etc; For quick-change 1/4" chuck systems or directly in the drill chuck. 105 degree angle extension, the angle screwdriver is ideal for drilling and screwing in hard-to-reach places, corners and edges. Connect the sockets to the cordless drill Bought new impact drills to go with you These are handy for attaching a socket to an electric drill Spring loaded ball bearing on the head keeps sockets secure Suitable for a screwdriver or screwdriver handle tools (hex hole or Three-jaw chuck can) drive sleeve, and after use can be converted to the size of the original hexagonal polygons, converted to a square head size, which can be used to install the sleeve is a good accessory to convert.3-ball bearing Gear in die-cast body for durability Triple Fix swiveling bit holder with quick-release fastener