metric comparison size · nominal diameter
0.9 mm
drill bit size.
A 0.9 mm bit measures 0.0354 in across (0.900 mm).
The metric diameter is the generated reference value; inches are a conversion. Commercial set contents vary.
Calibrated relative diameter · 1 in reference
0.9 mm · metric
0.0354 in
0.900 mm Designation0.9 mmmetric
Inch decimal0.0354nominal
Metric conversion0.900millimetres
Where this size sits from 0 to 1 inch 0.9 mm · 0.900 mm on a zero to 25.4 millimetre scale. Neighbor marks: #65, #64.
Measured neighbors
What sits beside 0.9 mm.
“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.
A generated comparison series from 0.5 to 13.0 mm in 0.1 mm steps. It is not a claim that every size is included in every commercial set.
Open source record