Hougen 14005-12 Holcutter Kit Includes: Arbor, Pilots, Hex Washer, instructions, and HSS Holcutters: 7/8, 1-1/8, 1-3/8, 1-3/4, 2 & 2-1/2" (12 pk) inch COLLET-FOR TAPMATIC (#22100)

COLLET-FOR TAPMATIC (#22100)

RotaMagic™ Super Concentrated Cutting Fluid is water soluble

Quad-Lead Thread System for faster cutter changes

3) Eject the slug at the end of the cut

Hougen 14005-12 Holcutter Kit Includes: Arbor, Pilots, Hex Washer, instructions, and HSS Holcutters: 7/8, 1-1/8, 1-3/8, 1-3/4, 2 & 2-1/2" (12 pk) inch COLLET-FOR TAPMATIC (#22100)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 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