I haven’t tried my rotozip collet adapters in the dewalt yet, afraid I’ll have a bit go flying across the room.
Also, rotozip bits are mostly downcut bits, so don’t use them to drill holes that are the same diameter. It’s also going to burn that first part where it plunges into the work, unless you ramp it in. I milled out my first dust shoe with a rotozip bit because I didn’t have an endmill long enough at the time. They’re okay, but because of how small a diameter they are, you’ll not get a good surface finish, and not super accurate cuts. You can see them bend when they cut.