if you want a dent angle of 90degrees how much should be the point angle?
To determine the point angle when you want a dent angle of 90 degrees, you need to understand the concept of drill bits and their geometries. The point angle refers to the angle formed at the tip of the drill bit, while the dent angle refers to the angle formed between the sides of the drill bit.
There are different types of drill bits with varying point angles, but for most standard twist drill bits, the typical point angle is 118 degrees or 135 degrees. These angles are commonly used for general-purpose drilling in various materials.
To achieve a dent angle of 90 degrees, you would need to use a drill bit with a specific point angle.
To calculate the point angle needed, you can use the formula:
Point Angle = 180 degrees - Dent Angle
Therefore,
Point Angle = 180 degrees - 90 degrees
Point Angle = 90 degrees
So, if you want a dent angle of 90 degrees, the point angle should also be 90 degrees. In practical terms, you would need to use a drill bit with a tip that forms a right angle of 90 degrees. However, such drill bits with a 90-degree point angle are not as common as the standard 118 or 135 degrees.
It's important to note that the specific dent and point angles can vary depending on the type of drilling operation and the material being drilled. It is always recommended to refer to the manufacturer's specifications for the drill bit being used to ensure optimal performance and accuracy.