Drill Bit Size Converter
Convert drill bit sizes between fractional inches, decimal inches, metric millimeters, letter sizes (A-Z), and number sizes (1-80). Includes closest fraction lookup.
How to Use Drill Bit Size Converter
Select the input type (decimal, fractional, metric, letter, or number), enter the drill bit size, and click Convert. View equivalent sizes in all formats.
Step-by-Step Instructions
- Select the input size type
- Enter the drill bit size value
- Click Convert to see all equivalents
- Copy the converted sizes
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