A very long time ago, I saw a chart that interspersed fractional and metric drill sizes. The chart was very handy in those cases where I wanted to use a metric bit to drill a hole slightly larger than I could with a smaller fractional bit or vice versa. After spending a long time on the Internet searching without luck, I gave up. Today I was looking up the PDF manual for my General Tools No. 1467 caliper and found the chart inside. I reentered everything (except the error) into an Excel spreadsheet and made the metric entries red. Here's a PDF of the chart. I hope you find it as useful as I do. Sometimes the simple things make a big difference.
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