... 8mm TCT twist centre drill 8mm HSS twist centre drill 5 x TCT masonry drill bits 5 x HSS wood drill bits 3 metre tape measure ... , model builders, clockmakers and hobbyists For precision circles and holes in sheet metal, brass, copper, aluminum, plastics, wood, and composition ... wood pilot auger bit. For wood and plastics, etc. Diameter:Ø26,30,35,55mm Inch size available. Hole Saw Lock Installation ...