Other naming systemsABSOLUTE DIAMETER DELTA
fractional-inch drill · nominal diameter
15/16
drill bit size.
A 15/16 bit measures 0.9375 in across (23.813 mm).
The fractional diameter is exact; decimal and metric values are conversions.
Calibrated relative diameter · 1 in reference
15/16 · fractional
0.9375 in
23.813 mm Designation15/16fractional
Inch decimal0.9375nominal
Metric conversion23.813millimetres
Where this size sits from 0 to 1 inch 15/16 · 23.813 mm on a zero to 25.4 millimetre scale. Neighbor marks: 61/64, 59/64.
Measured neighbors
What sits beside 15/16.
“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