Must-Have Drill and Tap Size Tables

Keep these reference tables handy for faster setup and fewer errors.

1. Unified Screw Threads (UNC/UNF) chart: lists tap drill sizes for coarse and fine threads.

2. Metric Coarse and Fine Tap Drill chart: gives recommended drill diameters for common M sizes.

3. Pipe Thread (NPT) drilling chart: includes taper and straight pipe tap drill sizes.

4. Decimal equivalent chart: converts fractional, number, and letter drills to decimal inches for quick lookup.

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