A pinpoint gate is a small gate, generally 0.75mm or less in diameter. In multi-cavity molds, the dimensions of pinpoint gates must be held within very tight tolerances in order to fill all cavities at the same time.

The advantage of such a small gate is that it leaves a small, easily-removed mark on the part.

Disadvantages include the following:

• The melt tends to freeze early in a pinpoint gate, as the flow slows. For this reason its use is limited to small parts and to resins with good fluidity.
• Pinpoint gates often require a third plate (for part removal), increasing mold expense.
• Pinpoints gates can lead to very high shear rate and high entrance pressure loss.