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3. Improved Surface Finish When a part is designed with the correct draft angle, the likelihood of surface imperfections decreases. Proper design helps minimize the chances of surface scratches or blemishes, resulting in higher-quality finished products.

The draft angle is the taper added to the mold walls of a die cast. It allows for the easy removal of the finished part from the mold without causing damage. When a cast part is produced, it tends to shrink slightly as it cools. If the mold is perfectly vertical with no draft angle, the part may become stuck, leading to potential defects and damage during extraction. The draft angle facilitates smooth ejection, ensuring that the part can slide out without hindrance.