1. What is Drill Tip Length?

The drill tip length is the distance from the drill's point to where the full diameter begins. This measurement is important for determining the minimum depth needed for a through hole and for calculating the total drill length required for a specific application.

2. How Does the Calculator Work?

The calculator uses the drill tip length formula:

Where:

• \( Diameter \) — Drill diameter (in inches)
• \( Angle \) — Drill point angle (in degrees)
• \( \tan \) — Tangent trigonometric function

Explanation: The formula calculates the length of the conical tip based on the drill's diameter and its point angle.

3. Importance of Tip Length Calculation

Details: Knowing the tip length is essential for determining the minimum depth required for a through hole and ensuring proper drill selection for specific 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), 135° (for harder materials), and 90° (for plastics and soft materials).

Q2: Why is tip length important?
A: It helps determine the minimum depth needed for a through hole and ensures the drill is long enough for the application.

Q3: How does angle affect tip length?
A: A smaller angle results in a longer tip length, while a larger angle produces a shorter tip length for the same diameter.

Q4: Can I use this for metric measurements?
A: Yes, but ensure all measurements use the same units (either all metric or all imperial).

Q5: Does this work for all drill types?
A: This calculation applies to standard twist drills with conical points. Special drill geometries may require different calculations.