7/8" Sheet Metal Holcutter Quad Lead 1/8" Doc 14228 5620340 these are lighter duty counters

these are lighter duty counters than the IVO brand

0mm Cobalt Long 3Fl Unimill Cutter

Note: Nozzle sizes

H1 / 4A Adjustable Hand Reamer 9

7/8" Sheet Metal Holcutter Quad Lead 1/8" Doc 14228 5620340 these are lighter duty countersThe Holcutters, 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 extend 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