Easy way to drill big holes (step bits)

   / Easy way to drill big holes (step bits) #31  
I'm a contractor and it's the only bit that will start a hole in heavy cast iron sewer pipe, once the hole is started it's very easy to step it out to 1" or more. I've tried everything from Titanium to cobalt, nothing else works as easy. I'm not sure what brand I have been using lately, Lennox, Irwin or Milwaukee, but I keep a couple on the truck all the time.
 
   / Easy way to drill big holes (step bits) #32  
They're great for sheet metal or thin material.
 

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