Where can I get LARGE Drill Bits at good prices??

   / Where can I get LARGE Drill Bits at good prices?? #21  
The Hougen annular cutter is called a Rotobroach and while expewnsive, work very well in a mag drill. We drill large holes in truck and trailer frames with them regularly.

Not being a spoil sport but large diameter holes on a mill, whether CNC or manual are best made with an offset boring head.
 
 
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