Hole Hog

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A selection of core drills and companion (minimum starting hole size) pilot drills in a black steel index. This tool is designed exclusively for enlarging existing holes. The 4-flute design eliminates the catching and hogging-in experienced with standard S & D drills when breaking through thinner materials such as truck frames.



  • 134-AG core drill sizes 3/8", 1/2", 5/8" & 3/4"
  • 175-AG drill sizes 1/4", 5/16", 25/64" & 15/32"