Keen Metal Spike sells for 0 plat 0 gold 1 silver 0 copper to Sateal Deirosap vendor in the bazaar offered by level 2 human monk with 143 cha... Current prices in bazaar range from 1 to 2 plat...
I believe this recipe was discovered during the first days of the new Tradeskill UI, when it would occasionally link to the wrong recipe, laying bare some of EQ's secrets. Unfortunately, no one has yet reported how to make one of the subcomponents in the recipe, the blood treated kaniz hide, so it's unclear whether this recipe is actually accomplishable in-game at the moment (the subcombine may be broken, for example).
Just a guess (cuz I havent tried it) but perhaps the blood treated kaniz hide is made from combining ?Q Kaniz hide, Kaniz blood, and tea leaf oil (or a combination of some of these). I looked up other treated items and used similar subcomponents. Perhaps a tailoring skill.
I don't see Spiked Collar of Agony or Blood Treated Kaniz Hide listed in Lucy. If you've successfully made one and have it equipped, in your inventory, or your bank, please run Item Collector so we can collect the item. Until someone points me at a collected version of these items, I won't assume they're working recipes, despite what the tradeskill UI or EQTC might (have had to) say.