MODRATEC Useful Data (otherwise known as MUD) is a series of pages containing helpful information particularly relevant to rail modellers. The tables on this page use our easy-to-compare format to show drill diameters of standard size imperial, number, letter, and metric drill bits. |
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Comparative Standard Drill SizesThe tables below show the comparative size of standard drill bits.
Revised and extended 09-Nov-2003.
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