Deep-Hole Peck Cycle Calculator
Deep-hole peck drilling trades cutting time for chip control. The live calculator estimates programmed depth, peck count and retract overhead.
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Calculator path
- 1 Peck drilling calculator Primary page for the main search intent.
- 2 Drilling feed-rate calculator Supporting formula or reference page.
- 3 Dovetail calculator male and female over-pin or between-pin inspection.
- 4 Tap drill size calculator thread engagement and tap-drill diameter.
- 5 Countersink depth calculator diameter and depth geometry for chamfers.
Programmed depth
Z = H + Lp
Drill point allowance
Lp = (D / 2) / tan(point_angle / 2)
Peck count
Np = ceil(Z / Q)
Related pages
- Dovetail calculator - male and female over-pin or between-pin inspection.
- Peck drilling calculator - peck count, programmed depth and retract overhead.
- Tap drill size calculator - thread engagement and tap-drill diameter.
- Countersink depth calculator - diameter and depth geometry for chamfers.