Chamfers are normally formed at what angle?

• A. 30 degrees
• B. 45 degrees
• C. 60 degrees
• D. 90 degrees

Answer: (B)

Chamfers are normally formed at a 45-degree angle. This creates a balanced bevel that removes sharp corners from a right-angle edge while preserving material on both adjoining faces. The 45-degree bevel is symmetric relative to the two surfaces, making it easy to fabricate with standard tools and ensures consistency across parts. It reduces the risk of chipping, snagging, or injury and provides a clean, durable edge. Other angles like 30 or 60 degrees are used for specific design or clearance requirements, but 45 degrees is the most versatile and widely accepted for general chamfers. A 90-degree cut would not be a chamfer at all; it leaves a square edge.