Mine's magnetic, too. At 14. 4K, I'm not going to waste time trying a link I wont buy anything from anyway. (I hear they like you to have money in the acct when you write the check. )
Mine is a custom job, with a bigger nut welded to the hex head that I would assume got rounded off by someone trying to use a SAE wrench on metric bolts/heads. I use a 10" Vice grip, and the "machinist" was kind enough to leave a goodly gap between the nut and the bottom of the drain pan to allow me to get a good bite on it with my fancy pliers. :-laf
Daniel