Hougen 14266 2-1/8" Hougen Sheet Metal Holcutter rotalocplus-kit Titanium Nitride (TiN) is a

Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials

& (2) wrenches

Includes: Annular Cutter Only

and more efficient

Hougen 14266 2-1/8" Hougen Sheet Metal Holcutter rotalocplus-kit Titanium Nitride (TiN) is aHolcutters 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