Machining Fundamentals
Machining Fundamentals
Machining Fundamentals
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Application of Geometric<br />
Dimensioning and Tolerancing<br />
• Feature control frame. A feature control<br />
frame is used when a location or form<br />
tolerance is related to a datum.<br />
• It contains the geometric symbol, allowable<br />
tolerance, and the datum reference letter.<br />
• It is connected to an extension line of the<br />
feature, a leader running to the feature, or<br />
below a leader-directed note of the feature.