I have an application where i need to drill a 3mm hole to a depth of 90mm in 15/5 PH steel. I have a drill from Titex but it is not working as per their recommended parameters (broken 2 drills till now). Can anyone out there suggest a cutting parameter which can make this operation work ? It would help if you can give me the RPM, Feed/Rev and the Peck depth per peck cycle (i use peck drilling cycle).

thanks a lot