Great finds. That drill was on its last leg from wear use. Good eye. I like that flint/chert one also. Kinda a mixture of your other materials. Nice job Americus. Rain is coming maybe you will have time for another hunt. Good luck!
OK I was wondering cause I do find it once in a while here in my area in the creeks. No pints just yet and mine are black with that cortex still on it and shows some work. Wonder if they came here or went there.