Applied Magnets 2" x 1/2" with 3/16" Hole Grade N42 Neodymium Disc Magnet 1 Neodymium Magnet. Offers much more holding power than any ceramic magnet. Magnet Grade N42 , Stronger than N40, N38 and N35. Magnetized through the 1/2 inch Thickness. Approximate Pull Force: 110 lbs. Durable Nickel-Copper-Nickel 3-layer Coated magnet.