Does anyone know if Milwallkee? roto bits will interchange with Makita? Or better question, will any of the other brand roto drill bits interchange with Makita. My son gave me a nice makita HR3851 roto hammer, but I need bits for it. I'm having a problem finding the bits I want. Home Depot is a supplier but getting service from them is sort of a pain. That's the only supplier listed around my area. Their site says the drill accepts spline bits. Is this the same as other brands?? Thanks for the input...