7/8" Sheet Metal Holcutter Quad Lead 1/8" Doc 14228 GUNS-A6041 S235JR and 1

S235JR and 1

Visus 1/4"X24 Ns Hss Second Tap For producing precision threads by hand tapping

Plastic tool case contains 11088 Arbor Assembly

Contact Terminal Material: Stainless steel

7/8" Sheet Metal Holcutter Quad Lead 1/8" Doc 14228 GUNS-A6041 S235JR and 1The 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