Drill Holes, Drive Screws, Sand, Cut and Grind in Places You Never Could BeforeLock the shank of this Right Angle Drive into the chuck of your 3/8 inch or 1/2 inch electric drill (or power screwdriver) and drill, drive, cut and sand inside cabinets, between closely-spaced beams, around corners, over obstacles and in other places you otherwise couldn't reach. Permanently lubricated metal gears are encased in a durable polymer gearbox, and the 3/8 inch capacity chuck closes to 1/64 inch to hold miniature drills as well. Length over chuck is a compact 5-1/2 inches. Includes chuck key and screw-in handle for extra stability. Makes a great addition to anyone's tool set.