So in my companies infinite wisdom they have decided to quote a job that needs to be done tomorrow. I have to drill 21-5/8" Deep using an 11/16" HSS drill. However im noticing that this material seems to be very hard. Never had to cut it before. So Im wondering whats the best advice you all could give me to get this done. Ordering tooling is not an option here. My company is far too cheap to buy nice things. It will going into a CNC and G83 Peck Drilled im just unsure of RPM and Feed and Depth per peck. Thank you.