1. What is the 6x32 Tap Drill Size?

The 6x32 tap drill size calculation determines the proper hole diameter to drill before tapping threads for a #6-32 screw. The size varies based on the desired thread percentage.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• 0.138 — Base size for #6 screw
• 0.013 — Constant factor
• 32 — Threads per inch
• Percentage — Desired thread engagement (typically 75%)

Explanation: The formula calculates the drill size needed to achieve a specific percentage of thread engagement when tapping.

3. Importance of Correct Drill Size

Details: Using the correct drill size ensures proper thread engagement - too small and the tap may break, too large and the threads will be weak.

4. Using the Calculator

Tips: Enter the desired thread percentage (typically 75%). The calculator will output the recommended drill size in inches.

5. Frequently Asked Questions (FAQ)

Q1: What percentage should I use?
A: 75% is standard for most applications, providing a good balance between strength and ease of tapping.

Q2: What material is this for?
A: This calculation works for most materials, but harder materials may require slightly larger holes.

Q3: How precise does the drill size need to be?
A: Within 0.001 inches is recommended for best results.

Q4: Can I use this for other screw sizes?
A: No, this formula is specific to #6-32 screws. Other sizes have different base values.

Q5: What if I can't find the exact drill bit size?
A: Use the next closest standard size, preferably slightly larger rather than smaller.