Flute ah set is the best set they have made yet. A step up from regular consults, these pull metal away faster and keep heat at minimum, extending life of your lifetime warranteed bit. The item “Mac tools 6429dsa 29 pc flute ah drill bit cobalt sets” is in sale since Tuesday, September 06, 2016. This item is in the category “Home & Garden\Tools\Power Tools\Drill Bits”. The seller is “matthewoo_65″ and is located in Pawling, New York. This item can be shipped to United States.