fractional-inch drill · nominal diameter
29/64
drill bit size.
A 29/64 bit measures 0.4531 in across (11.509 mm).
The fractional diameter is exact; decimal and metric values are conversions.
Calibrated relative diameter · 1 in reference
29/64 · fractional
0.4531 in
11.509 mm Designation29/64fractional
Inch decimal0.4531nominal
Metric conversion11.509millimetres
Where this size sits from 0 to 1 inch 29/64 · 11.509 mm on a zero to 25.4 millimetre scale. Neighbor marks: 11.5 mm, 11.6 mm.
Measured neighbors
What sits beside 29/64.
“Nearest” means nominal diameter only. It does not make a neighboring size acceptable for a tolerance, tapping, reaming, or fastener application.
This row is at the exposed edge of its series.
Source record
Drill Bit Size Chart.
Fractional sizes are exact rational multiples of one inch.
Open source record