39940 3-7/8 4IN DEPTH OF CUT ANNULAR CUT

39940 3-7/8 4IN DEPTH OF CUT ANNULAR CUT
Drillco 94SE456 3-7/8 4 in Depth of Cut Annular Cutter 1-1/4 SH Fractional High Speed Steel ; 1EA/PK

Drillco 94SE456 3-7/8 4 Depth of Cut Annular Cutter 1-1/4 SH, Fractional, High Speed Steel,,,
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 remove only the periphery of the hole, ejecting a slug at the end of the cut.