Number & Letter Drill Size Chart (#80 to Z, Inch & mm)
Complete number and letter drill size chart from #80 to Z in decimal inches and mm, with common uses and fractional and metric substitutes.
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#7 Drill Bit Size: Diameter in Inches & mm (0.201″)
A #7 drill bit is 0.201 in (5.105 mm), the tap drill for 1/4-20. See its closest fractional and metric sizes, uses and substitutes.
