
Material: HSS Outer Diameter: 16mm/0.62'', 18.5/0.71'', 20mm/0.78'', 25mm/0.98", 30mm/1.18'' Length: 65mm/14'' (Approx.) Shank Diameter: mm/0.35 & Features: Practical and durable Provide 5 kinds of HSS hole size, meet your needs Perfect for installing doors and locks, knobs and Drilling holes in larger diameter cabinets and countertops, etc. Cuts steel, stainless steel, aluminum, brass, copper, fiberglass, Formica and other laminated products in seconds Package: 5 x Different Size Hole