Designed with the mechanical contractor & pipe fitter in mind, the magnetic drill pipe adapter delivers improved magnetic holding force on rounded surfaces. The grooved bottom of this accessory also improves the alignment process and drilling accuracy when working on rounded surfaces. The magnetic drill pipe adapter can be used on 6 in. schedule 40 carbon steel pipe and larger, and is easily added to the M18 FUEL 1-1/2 in. magnetic drills (2787-22 & 2788-22).