Perfect every timemakes studding easy. Hollow drill for 7mm or 5/16in. studs makes a precise opening for installing studs. For 7mm T-nut studs and 5/16in. push-through studs use 7mm drill.
*Free to the contiguous United States consisting of the 48 adjoining U.S. states plus Washington, D.C., on the continent of North America. Free is not available to non-contiguous states of Alaska and Hawaii, US Protectorates, or APO, FPO or DPO locations. Photos are for reference only. Actual product may differ from the item shown in photograph.