Originally Posted by 375inStroke
Carbide tipped drill bits will cut through broken high speed steel drill bits and broken EZ-Outs like butter. They should make short work of that. Use slow speed. You want one that looks like a normal twist drill, but has a little chip of carbide brazed to the tip like this:

[Linked Image]

https://www.amazon.com/Jobber-Carbide-Tipped-Standard-50359/dp/B00PM4T9QU


These will work in a pinch
CHEAP ALTERNATIVE

Horror freight has a set for 6.00 whistling