1-1/4" Sheet Metal Holcutter Quad Lead 1/8" Doc 14240 779005 Every automotive enthusiast knows that

Every automotive enthusiast knows that the header on a car or motorcycle is one of the hottest parts of the exhaust system

It is highly suitable for anti-corrosion

They are designed for your valve covers

Clamping capacity 25mm diameter

high performance

1-1/4" Sheet Metal Holcutter Quad Lead 1/8" Doc 14240 779005 Every automotive enthusiast knows thatThe 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