Direct Engineering Channel
Get in Touch
Have a question about a drilling formula, want to report a machine feed bug, or suggest a new tool for our machining suite? We welcome technical feedback from machinists, programmers, and engineers worldwide.
Direct Email
General Inquiries & Support
info@drillcalculator.comTechnical & Engineering Feedback
info@drillcalculator.comPrivacy & Legal Desk
info@drillcalculator.comResponse window: 24–48 hours
Looking for Quick Answers?
Before submitting a ticket, check our technical documentation: