The standard cutting angle for a cold chisel is 70 degrees.

• A. True
• B. False
• C. Not sure
• D. Not applicable

Answer: (A)

The edge geometry of a cold chisel is chosen for durability under hammer blows. The cutting edge is ground so the two faces meet at about 70 degrees, creating an included angle of roughly 70 degrees. This provides a strong, impact-resistant edge that can still cut metal when struck with a hammer. When sharpening, keeping that 70-degree angle helps maintain the tool’s balance between toughness and cutting ability. If you sharpen more acutely, the edge will cut more easily but chip or dull quicker; if you go much steeper, the edge becomes harder to use and requires more force. So, the standard cutting angle for a cold chisel is 70 degrees.