CNC Machining Tolerances & Standards

Our diverse CNC machine fleet enables us to deliver standard-tolerance parts at competitive prices and super-precision components for high-end applications. SHBD Metal guarantees every part is produced to your specifications. When 2D drawings are unavailable, simply reference ISO 2768 standards.

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CNC Machining Tolerances
Specification CNC Milling CNC Turning
5 Axis Work 5 Axis CNC Machining
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 Φ 0.50 mm Φ 0.00197 in. Φ 0.50 mm Φ 0.00197 in.
Linear Dimension +/- 0.025 mm +/- 0.001 in. +/- 0.025 mm +/- 0.001 in.
Hole Diameters (Not Reamed) +/- 0.025 mm +/- 0.001 in. +/- 0.025 mm +/- 0.001 in.
Shaft Diameters +/- 0.025 mm +/- 0.001 in. +/- 0.025 mm +/- 0.001 in.
Edge Condition *Sharp edges will be broken with a chamfer or radius unless otherwise specified. Chamfer or radius dimensions must be noted on the drawing.
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
*SHBD Metal can manufacture threads of any specification and size to meet customer requirements.
Text Minimum width of 0.5 mm, depth of 0.1 mm SHBD Metal applies CNC engraving or laser marking to create standard text per customer specifications. SHBD Metal uses laser marking to add standard text to CNC turned components.
ISO 2768 Standard View ISO 2768 standard →
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