A method of affixing a cranial burr hole cover comprising an elongated internal bracing member, a locking external cover member joined by one or more connecting members, and a locking mechanism, whereby the interior bracing member is tilted and one end is inserted through the burr hole and under the skull. The internal bracing member is then moved laterally relative to the burr hole to allow the opposite end of the internal bracing member to clear the opposite edge of the burr hole. The internal bracing member is then centered beneath the burr hole. The external cover member is now moved distally toward the skull to cover the burr hole. The locking mechanism secures the cover in place on the skull and the connecting members extending from the cover member are cut flush with the cover member.
