Explore our range of 10mm keyed chuck angle drills, which require a chuck key to change the drill bit. These drills are designed to drill wood, metal and plastic surfaces, but not stone, brick or concrete. Angle drills are designed to drill surfaces that are in tight locations. For example, they are commonly used to drill holes in joists for electrical wiring, where the location in which the wires are run can be confined with little space to work and manoeuvre the drill.