7/16 thru 2 1/4 inch are 3/4 inch Diameter Shank

Broach cutting using Drillco cutters means you can produce large diameter holes efficiently and quickly with less energy, faster penetration and less thrust. Rather than drilling out the metal with a solid drill, Drillco cutters removes only the periphery of the hole, ejecting a slug at the end of the cut. Tests show that a solid drill will take 3 minutes, 45 seconds to drill a 1-1/4 inch hole in 3/4 inch plate. A Drillco cutter can do the same job in 35 seconds.

Packaging : All sizes are individually packaged.