BenchReference / Drill sizes / 7/64″ 7/64″ Drill Bit Decimal inches 0.1094″
Millimeters 2.778 mm
System Fractional inch
Nearest equivalents in other systems System Nearest drill Size Difference Metric 2.8 mm 0.1102″ / 2.8 mm +0.022 mm (+0.0009″)
Number (wire gauge) #35 0.1100″ / 2.794 mm +0.016 mm (+0.0006″)
Letter A 0.2340″ / 5.944 mm +3.165 mm (+0.1246″)
−0.222 mm +0.222 mm 7/64″ #35 +0.016 mm 2.8 mm +0.022 mm ← 5/64″ −0.794 mm ← 3/32″ −0.397 mm 1/8″ +0.397 mm → 9/64″ +0.794 mm → tick position = true diameter · fractional neighbors above, equivalents below · window ±0.22 mm
Positive difference = cuts a slightly larger hole than 7/64″. Sizes
beyond the window are listed with arrows — they are not close substitutes.
Neighboring fractional sizes Drill Decimal in mm vs 7/64″ 5/64″ 0.0781 1.984 −0.794 mm 3/32″ 0.0938 2.381 −0.397 mm 7/64″ 0.1094 2.778 — 1/8″ 0.1250 3.175 +0.397 mm 9/64″ 0.1406 3.572 +0.794 mm
← 3/32″ (smaller) 1/8″ (larger) →
Compare 7/64″ with another size
Data provenance. ASME B94.11M, Twist Drills (standard drill size series) (ASME). Millimeter and inch values are converted with the exact definition 1 in = 25.4 mm; the canonical dimension for this fractional size is 0.1094″. See all data sources .