3/4" x 7/16" Shank |Mag-Bit 626.1216| Hole Cutters | 2 Piece finish-black-fine-thread ducts and machinery to ceilings

ducts and machinery to ceilings and walls using bolts or threaded rods

Ultra Flo Kwik Fit panels quickly snap into place with no fasteners required

burr-free holes in thin materials

Versatile high quality fast boring general purpose ship auger bits come with a self-feed screw point for fast

Double flutes for fast chip extraction

3/4" x 7/16" Shank |Mag-Bit 626.1216| Hole Cutters | 2 Piece finish-black-fine-thread ducts and machinery to ceilingsDiameters 11 16" through 3" Cuts up to 3 16" deep Auto ejecting slug Diameters 11 16" through 3". Cuts sheet metal, stainless steel, iron, cast iron, copper, abrasive materials such as high density resin and metal plate. Cuts up to 3 16" deep. Auto ejecting slug.