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Drilling Time

Drilling Cycle Time Calculation

Use this page to estimate drill time from hole depth, feed per revolution, peck strategy, and batch setup before you move into the full machining-time workflow.

Direct answer: drilling cycle time = cutting time + peck/retract time + setup allocation.

The Drilling Formula

Drilling Time = Hole Depth / Table Feed

Table feed is RPM × feed per revolution for a standard drill cycle.

What Changes the Result?

  • Peck cycles for chip control in deeper holes.
  • Retract distance and dwell time at the bottom of the hole.
  • Tool changes, spot drilling, and setup allocation across the batch.

Calculator Handoff

Use the machining time calculator when you need the drilling estimate inside a larger quote or capacity model.

Milling cycle time calculation
Use the matching support page for milling-specific non-cutting time.
Cycle time formulas
Review the broader milling, turning, and drilling formula set.

Frequently Asked Questions

How do I model peck drilling?

Count each retract and re-entry as non-cutting time, then add it on top of the basic hole-feed calculation.

Does drilling cycle time include spotting?

Yes, if the spot drill is part of the operation sequence. Treat it as its own cutting step and include the transfer time between tools.