Drill Hog 1-5/16" HI-Molybdenum M7 Bi-Metal Hole Saw
3/8" Diameter
Drill Hog 7/8" Tungsten Carbide Tipped Hole Cutter
Try them out for 60 days and if they don't out perform your current sockets
Drill Hog® HELIX Cobalt M42 Spiral Flute Step Bit pry bars Drill Hog 1-5/16" HI-Molybdenum M7Drill Hog 5 Pc Helix Spiral Flute Cobalt M42 Step Drill Bit Included Sizes: 3 16" to 1 2" Helix Spiral Flute Step Drill Bit (6 Steps) 6 Steps: 3 16", 1 4", 5 16", 3 8", 7 16", 1 2" 1 8" to 1 2" Helix Spiral Flute Step Drill Bit (13 Steps) 13 Steps: 1 8", 5 32", 3 16", 7 32", 1 4", 9 32", 5 16", 11 32", 3 8", 13 32", 7 16", 15 32", 1 2" 1 4" to 3 4" Helix Spiral Flute Step Drill Bit (9 Steps) 9 Steps: 1 4", 5 16", 3 8", 7 16", 1 2", 9 16", 5 8", 11