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Surface Finish Ra Explained: What Designers and Buyers Need to Specify

Surface Finish Ra Explained: What Designers and Buyers Need to Specify

by admin | Sep 22, 2026 | CNC Machining, Precision Engineering

Surface finish is an important consideration on many CNC-machined components, but it is also an area where drawings can easily become more restrictive than necessary. A surface that looks visually smooth is not necessarily suitable for every function, and a surface...
True Position Tolerance Explained for CNC Machined Parts

True Position Tolerance Explained for CNC Machined Parts

by admin | Sep 14, 2026 | CNC Machining

True position is one of the most commonly used geometric tolerances on engineering drawings, particularly for holes, bores, pins and other features that must align correctly within an assembly. At first glance, it can appear more complicated than a conventional...
Datums on Engineering Drawings: How They Control CNC Machining and Inspection

Datums on Engineering Drawings: How They Control CNC Machining and Inspection

by admin | Sep 7, 2026 | CNC Machining

Datums are fundamental to many engineering drawings because they establish the reference framework used to locate, orient and inspect important component features. They help ensure that designers, machinists and inspectors are all working from the same set of...
Flatness vs Parallelism in CNC Machining: What’s the Difference?

Flatness vs Parallelism in CNC Machining: What’s the Difference?

by admin | Sep 1, 2026 | CNC Machining

Flatness and parallelism are two common geometric tolerances used on engineering drawings, and although they can look similar at first glance, they control different characteristics of a machined component. Flatness controls the form of an individual surface, while...
CNC Machining Hole Tolerance: Drilling, Reaming and Boring Explained

CNC Machining Hole Tolerance: Drilling, Reaming and Boring Explained

by admin | Aug 31, 2026 | CNC Machining

Holes are among the most common features found on CNC-machined components.They can also be among the most functionally important. A hole may simply provide clearance for a fastener, or it may locate a dowel, carry a bearing, guide a shaft, provide a sealing surface or...
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