fractional-inch drill · nominal diameter
17/64
drill bit size.
A 17/64 bit measures 0.2656 in across (6.747 mm).
The fractional diameter is exact; decimal and metric values are conversions.
Calibrated relative diameter · 1 in reference
17/64 · fractional
0.2656 in
6.747 mm Designation17/64fractional
Inch decimal0.2656nominal
Metric conversion6.747millimetres
Where this size sits from 0 to 1 inch 17/64 · 6.747 mm on a zero to 25.4 millimetre scale. Neighbor marks: H, 6.7 mm.
Measured neighbors
What sits beside 17/64.
“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