Nebu Precision CNC Machining Tolerances
For metals, our machining service adheres to ISO 2768-m standards, and for plastics, we follow ISO 2768-c.
Please clearly mark any custom tolerances on your drawing.
Standards
CNC Milling
CNC Turning
Maximum Part Size
4000×1500×600 mm
157.5×59.1×23.6 inches
157.5×59.1×23.6 inches
200×500 mm
7.9×19.7 inches
7.9×19.7 inches
Minimum Part Size
2×2×0.5 mm
0.079×0.079×0.019 inches
0.079×0.079×0.019 inches
2×2×0.5 mm
0.079×0.079×0.019 inches
0.079×0.079×0.019 inches
Minimum Feature Size
Φ 0.50 mm
Φ 0.0196 inches
Φ 0.0196 inches
Φ 0.50 mm
Φ 0.0196 inches
Φ 0.0196 inches
Standard Tolerances
Metals: ISO 2768-m Plastics: ISO 2768-c
Metals: ISO 2768-m Plastics: ISO 2768-c
Linear Dimension
+/- 0.025 mm
+/- 0.001 inches
+/- 0.001 inches
+/- 0.025 mm
+/- 0.001 inches
+/- 0.001 inches
Hole Diameters
(Not Reamed)
(Not Reamed)
+/- 0.025 mm
+/- 0.001 inches
+/- 0.001 inches
+/- 0.025 mm
+/- 0.001 inches
+/- 0.001 inches
Shaft Diameters
Sharp corners will be removed in the form of a chamfer
or radius. The size of
the chamfer, or resulting radii, must be indicated on the drawing.
Edge Condition
Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth:
4-6×diameter
Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth:
4-6×diameter
Threads and Tapped Holes
Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
Diameter: Φ 1.5-5 mm, depth: 3×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
Diameter: Φ 5 mm or more, depth: 4-6×diameter
Text
With a minimum width of 0.5 mm and a depth of 0.1 mm, Nebu Precision can use
CNC engraving or laser carving to create standard text based on customers' requirements.
Nebu Precision can use laser marking to create standard text for CNC turned
parts.
Lead Time
5 business days
5 business days