Hougen 14228 7/8" Hougen Sheet Metal Holcutter doc-4 They require less horsepower and

They require less horsepower and thrust to cut

5/8" and 3/4" cutters and 5/16" - 3/4" X 1/4" depth in plastic tool case is perfect for twist drills and hole saws

1) Locate the holes center point

Holcutters Feature the Patented

Hougen 14228 7/8" Hougen Sheet Metal Holcutter doc-4 They require less horsepower andHolcutters are not hole saws. They're 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 three times faster and cleaner than hole saws in sheet metal and have dramatically extended tool life, too. All sizes have a "shoulder" to prevent plunge thru, which is especially useful when drilling into live electrical boxes. See for yourself why