Hillman Hardware Essentials keyed door and utility cam door locks are ideal for locking wood or metal cabinets. Locks are available in several finishes to fit decorating needs. Traditionally used to fit in cylinder bodies. If installing with collar fits use at least 3/4 Inch material if installing without collar fits use 7/8 Inch material. Tools required: marking pencil, power drill, 3/4Inch drill bit, handheld screwdriver and a wrench.