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Chamfer Spec Table
Chamfer KS Specifications — 3 sizes
KS B ISO 2768-1
General tolerance table for chamfers and fillets per ISO 2768-1.
Practical Notes
- General tolerances for chamfers (C) and fillets (R) are also specified in ISO 2768-1. Applied when not otherwise specified.
KSChamfer
3 sizes| Nom. Range | Type | f (Fine) | m (Medium) | c (Coarse) | v (Very Coarse) |
|---|---|---|---|---|---|
| 0.5~3 | Chamfer Dim. | ±0.2 | ±0.2 | ±0.4 | ±0.4 |
| 3~30 | Chamfer Dim. | ±0.5 | ±0.5 | ±1 | ±1 |
| 30 over | Chamfer Dim. | ±1 | ±1 | ±2 | ±2 |
Key Features
- General tolerance for chamfer (C chamfer / R fillet) dimensions; KS B ISO 2768-1 annex
- Tolerances ±0.2–±1.0 mm for 0.5–6 mm range by grade f/m/c/v
- Missing or oversized chamfers cause assembly interference and appearance defects; tolerance control essential
Key Applications
Machine part edge chamfering, hole entrance chamfers, shaft end chamfers, sheet metal edge rounding, plastic injection gates
FAQ
What is the general tolerance for chamfers?
Medium grade: ±0.2mm for 0.5–3mm chamfers, ±0.5mm for 3–6mm. Refer to ISO 2768-1 tables for detailed values.