It looks like he's buying somebody's electronics heat-sink extrusion and this is for endplates to close it out. Yes, I agree with you though: if they sell the extrusion, they probably sell the blank endplates.
At that point, he could just make a drill plate and drill them himself. Or somebody could quote a tooling block with drill bushings precisely located so he could drill the prefab endplates.
__________________
Greg |