fractional-inch drill · nominal diameter
11/64
drill bit size.
A 11/64 bit measures 0.1719 in across (4.366 mm).
The fractional diameter is exact; decimal and metric values are conversions.
Calibrated relative diameter · 1 in reference
11/64 · fractional
0.1719 in
4.366 mm Designation11/64fractional
Inch decimal0.1719nominal
Metric conversion4.366millimetres
Where this size sits from 0 to 1 inch 11/64 · 4.366 mm on a zero to 25.4 millimetre scale. Neighbor marks: #17, 4.4 mm.
Measured neighbors
What sits beside 11/64.
“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