List of Drill Bit and Tap Sizes - Drill Size Chart and Tap ...Explore further
2020-3-19u2002·u2002Metric drill bit sizes: diameter of the bit in terms of standard metric lengths. Letter drill bit sizes: the sizes are indicated in letters, from size A (the smallest) to size Z (the largest). Number drill bit sizes: the sizes are indicated in numbers, range from size 80 (the smallest) to size 1 (the largest).Number and letter sizes are commonly used for twist drill bits rather than other ...
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