12BA9109 up for sale is a solid carbide rectangle blank with grind stock on it , it measures 2.569 long x 0.535 wide x 0.346 thick , nice solid blank to make a cutting tool or a wear part, this is marked 55B but we do not know exact grade of the blank, nice item for a project, buyer to pay calculated shipping and packing to your locations , see our store for more machine shop related items , thank you RWK.