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Linear Tolerances

Linear Tolerances

 

Pressure Die Casting

Gravity Die Casting

Sand Casting

Length of Dimension A

Aluminium

Zinc

Aluminium or Zinc

Aluminium, Zinc or Copper

Basic Tolerance up to 25mm

± 0.075

± 0.05

± 0.4

-

Basic Tolerance up to 150mm

-

-

-

± 0.75

Additional Tolerance for each further 25mm

± 0.04

± 0.025

± 0.05

± 0.075

The values shown represent production practice at the most economical level. Greater accuracy involving extra work or care in production should be specified only when and where necessary.

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