https://www.amazon.com/Diameter-OverDrive-Boring-Ultra-Smooth/dp/B00CBKVMPY/ref=sr_1_1?crid=3A1Z54SXS64DZ&keywords=3%2F4%22+overdrive+bit&qid=1655663213&sprefix=3%2F4+overdrive+bit%2Caps%2C103&sr=8-1
This bit will blow through whatever you are trying to drill through.