Needle Insulin Pen 1 | Professional CAD Design 2D Technical Drawing Set

The Front view provides the primary profile of the needle, clearly showing its overall length, the graduated scale along the shaft, and the connection mechanism at the base. This view is essential for understanding the part's primary function and dimensions.

The Top view is crucial as it shows the circular cross-section of the needle shaft and the pattern of the holes on the base flange, which are not visible in the Front view. It provides a clear view of the diameter and the arrangement of the connection features.

The Left view provides a side profile that clearly shows the thickness of the flange and the internal structure of the connection hub, revealing details about the wall thickness and the internal bore that are not visible from the Front or Top views.