The Magnetic Flange Aligner with the newest OFF/ON 90 lb. holding power magnet technology.The Magnetic Flange Aligner is your third hand and has no threads or nuts to deal with while working on your project. Thickness of the flange is no longer an issue.Two (2) sizes of Centering Alignment Cones are included: Small Cones for flange holes 1/2 to 1-7/16-inch in diameter and Large Cones for flange holes 1/2 to 1-15/16-inch in diameter.The New Aligner comes in a compact case that will protect the tool from damage and keep it together in one place ready to use.