Surely they don't actually like drill bits measured in fractions of an inch, do they?
Yes, in USA the bits are in fractions and stuff you purchase will have instructions like, drill 3/8 hole for a wall anchor, or 2+1/4 hole for a door-bolt set.
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Yes, in USA the bits are in fractions and stuff you purchase will have instructions like, drill 3/8 hole for a wall anchor, or 2+1/4 hole for a door-bolt set.