CRAFTSMAN Hole Saw Kit, Bi-Metal Door Lock Installation Kit for Wood and Metal Doors (CMAH1MDL)

This hole‑saw set gives you the tools to cut clean circles for door lock hardware in both wood and metal doors.
It's useful for homeowners installing new deadbolts or for handymen retrofitting locksets, and the bi‑metal blades handle the tougher metal without overheating.
The kit comes with several common diameters, an arbor and a pilot bit, so you can choose the right size without buying extra accessories.