Carbide Holcutters
Holcutters are not hole saws. They are precision ground, heat treated tools that easily cut thru the stock rather than ripping, tearing, and pushing thru as do typical hole saws. They can produce holes 3X faster and cleaner than hole saws in sheet metal and have a dramatically extend tool life.
Carbide Tipped holcutters are great for general holemaking and offers improved performance in harder materials such as stainless steel. Sizes are available from 11/16" to 3" in diameter. All cutters include cutter, arbor, pilot and spring.