11. Simple machining Before commencing the drilling procedure, attach an adhesive tape cross to your surface to stop the drill from slipping off the tiles. Post navigation 12 Things That Can Protect Your Home While You’re Away 9 Things That We Wash Too Often, and 9 More That We Usually Forget About 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16