number drill · nominal diameter

#76
drill bit size.

A #76 bit measures 0.0200 in across (0.508 mm).

The inch decimal is the published nominal designation; millimetres are a conversion.

Diameter conversion cross-checked

Calibrated relative diameter · 1 in reference

#76 · number

0.0200 in

0.508 mm

Designation#76number

Inch decimal0.0200nominal

Metric conversion0.508millimetres

Where this size sits from 0 to 1 inch

#76 · 0.508 mm on a zero to 25.4 millimetre scale. Neighbor marks: 0.5 mm, #75.

0 25.4 mm

Show calibrated outline Open in Finder

Measured neighbors

What sits beside #76.

“Nearest” means nominal diameter only. It does not make a neighboring size acceptable for a tolerance, tapping, reaming, or fastener application.

Other naming systemsABSOLUTE DIAMETER DELTA

0.5 mmmetric 0.0197 inΔ -0.008 mm 0.6 mmmetric 0.0236 inΔ +0.092 mm 1/64fractional 0.0156 inΔ -0.111 mm

Same seriesNEAREST NOMINAL ROWS

#75number 0.533 mmΔ +0.025 mm #77number 0.457 mmΔ -0.051 mm

Source record

ASME.

The standard text is paywalled. Number and letter series are cross-checked against public manufacturer charts; exact standard edition/page verification remains a release gate.

Open source record

#76drill bit size.

What sits beside #76.

ASME.

#76
drill bit size.