Other naming systemsABSOLUTE DIAMETER DELTA
fractional-inch drill · nominal diameter
23/32
drill bit size.
A 23/32 bit measures 0.7188 in across (18.256 mm).
The fractional diameter is exact; decimal and metric values are conversions.
Calibrated relative diameter · 1 in reference
23/32 · fractional
0.7188 in
18.256 mm Designation23/32fractional
Inch decimal0.7188nominal
Metric conversion18.256millimetres
Where this size sits from 0 to 1 inch 23/32 · 18.256 mm on a zero to 25.4 millimetre scale. Neighbor marks: 45/64, 47/64.
Measured neighbors
What sits beside 23/32.
“Nearest” means nominal diameter only. It does not make a neighboring size acceptable for a tolerance, tapping, reaming, or fastener application.
Source record
Drill Bit Size Chart.
Fractional sizes are exact rational multiples of one inch.
Open source record