Huge diameter holes: Hole saws are perfect for making large holes that could be tricky to reach with standard drill bits. Suitable for use on aluminium, Solid iron, plastics, metal & wood 35mm most reducing depth To be used with an arbor for cutting 48mm Ø holes in several elements. https://claytonshvkx.theideasblog.com/35968028/5-essential-elements-for-hole-saw-supplier