How to Select a Deep Hole Drilling Vendor: RFQ Checklist and Evaluation Criteria
Outsourcing deep hole drilling is different from outsourcing standard machining. The cost of a mistake — wrong tooling, inadequate coolant pressure, insufficient experience — is higher because the part is often 80% complete when the hole is drilled. I have worked with dozens of deep hole drilling vendors over the years. Here is how I evaluate them. What to Include in Your RFQ An incomplete RFQ produces an inaccurate quote. The vendor cannot price the job correctly without knowing all the requirements. ...