3-Axis, 4-Axis and 5-Axis CNC Machining Centers
Stainless Steel
CNC Machining Tolerances
Our Breton CNC precision machining follows the ISO 2768-m standard for metallic materials and adheres to ISO 2768-c for plastics. When requesting particular tolerances, make sure to specify them clearly on your drawings.
Standards |
CNC Milling |
CNC Turning |
Maximum Part Size |
4000×1500×600 mm 157.5×59.1×23.6 in. |
200×500 mm 7.9×19.7 in. |
Minimum Part Size |
4×4 mm 0.1×0.1 in. |
2×2 mm 0.079×0.079 in. |
Minimum Feature Size |
Φ 0.50 mm Φ 0.00197 in. |
Φ 0.50 mm Φ 0.00197 in. |
Standard Tolerances |
Metals: ISO 2768-m |
Metals: ISO 2768-m |
Linear Dimension |
+/- 0.025 mm |
+/- 0.025 mm |
Hole Diameters |
+/- 0.025 mm |
+/- 0.025 mm |
Shaft Diameters |
+/- 0.025 mm |
+/- 0.025 mm |
Edge Condition |
Sharp corners need to be removed by utilizing bevels or curved edges. Exact measurements for the bevel or radius achieved need to be clearly indicated on the design. |
|
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 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth: 4-6×diameter |
Breton Precision can produce threads of any specification and size required by our customers. | ||
Text |
Minimum width of 0.5 mm, depth of 0.1 mm Breton Precision can utilize CNC marking or laser marking to produce standard text as per customer requirements. |
Breton Precision has the ability to utilize laser engraving to create standard text on components manufactured by CNC machining. |
Lead Time |
7 business days |
7 business days |