Deep field aluminum coil, fabricated steel case, 2030 lbs, 30 amps, 6.9KW generator required, for use in a hydraulic grapple, unless noted otherwise purchaser is responsible for installing magnet on grapple. Magnet is drilled and tapped for 1-1/4" diameter mounting bolts, other diameters are available on request. Specify make, model and bolt diameter for your grapple.