1. What is Drill Tip Depth?

Drill tip depth refers to the vertical distance from the drill point to the theoretical intersection point of the drill flanks. It's an important measurement in machining and drilling operations to determine how deep a drill will penetrate material at its tip.

2. How Does the Calculator Work?

The calculator uses the drill tip depth formula:

Where:

• \( Diameter \) — Diameter of the drill (inches)
• \( Angle \) — Point angle of the drill (degrees)
• \( \tan \) — Trigonometric tangent function

Explanation: The formula calculates the depth based on the drill's geometry, accounting for the angle at which the drill tapers to a point.

3. Importance of Drill Tip Depth Calculation

Details: Accurate drill tip depth calculation is crucial for precision drilling operations, determining proper drill length requirements, and ensuring correct hole depths in machining applications.

4. Using the Calculator

Tips: Enter the drill diameter in inches and the drill point angle in degrees. Both values must be positive numbers (diameter > 0, angle between 1-180 degrees).

5. Frequently Asked Questions (FAQ)

Q1: What is a typical drill point angle?
A: Common drill point angles are 118° (standard for general purpose drilling) and 135° (for harder materials).

Q2: Why is drill tip depth important?
A: It helps determine how much extra length is needed to achieve a specific hole depth, accounting for the drill's pointed tip.

Q3: Does this calculation work for all drill types?
A: This applies to standard twist drills with conical points. Special drill geometries (like flat-bottom drills) require different calculations.

Q4: How precise should my measurements be?
A: For most applications, measuring diameter to 0.001 inches and angle to 1 degree is sufficient.

Q5: Can I use this for metric measurements?
A: Yes, but ensure all units are consistent (use mm for both diameter and depth).