Rough Boring vs Fine Boring Head Technology for Precision CNC Machining

June 10, 2026

τελευταία εταιρικά νέα σχετικά με Rough Boring vs Fine Boring Head Technology for Precision CNC Machining

Boring: The Final Frontier of Precision

When tolerances are measured in microns, boring heads are indispensable. Rough boring heads maximize material removal (IT9-IT10) while fine boring heads deliver ultimate precision (IT6-IT7, Ra 0.4um).

Rough Boring Heads

Multi-insert design, 0.2-0.5 mm/rev feed, up to 6mm depth per side. Best for engine cylinder bores, gearbox housings, and heavy equipment.

Fine Boring Heads

Single-point micrometer adjustment, 0.05-0.15 mm/rev feed. Best for aerospace, precision hydraulic components, and mold finishing.

Comparison

ParameterRough BoringFine Boring
ToleranceIT9-10IT6-7
Surface FinishRa 1.6-3.2Ra 0.4-0.8
Insert Count2-41
Feed0.2-0.5 mm/rev0.05-0.15 mm/rev

Workflow

  1. Drill initial hole
  2. Rough bore (leave 0.3-0.5mm)
  3. Semi-finish (optional)
  4. Fine bore to final spec
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