General Tools 370-4 4-Oz Power Alnico Magnets: * Power Alnico magnet * Strong magnetic pull for lifting, holding, sorting, clamping or retrieving steel or iron parts * Hole in top of magnet for attaching conveyors, racks and welding jigs * 4 oz * 22 lbs approximate pull * 1-1/2" width, 1" height, 1" pole depth, 5/16" pole width, 3/4" opening between poles, 3/16" cored hole