BenchReference / Drill sizes / 2.8 mm 2.8 mm Drill Decimal inches 0.1102″
Millimeters 2.8 mm
System Metric
Nearest equivalents in other systems System Nearest drill Size Difference Fractional inch 7/64″ 0.1094″ / 2.778 mm −0.022 mm (−0.0009″)
Number (wire gauge) #35 0.1100″ / 2.794 mm −0.006 mm (−0.0002″)
Letter A 0.2340″ / 5.944 mm +3.144 mm (+0.1238″)
−0.224 mm +0.224 mm 2.8 mm 2.6 mm −0.2 mm 2.7 mm −0.1 mm 2.9 mm +0.1 mm 3 mm +0.2 mm 7/64″ −0.022 mm #35 −0.006 mm A +3.144 mm → tick position = true diameter · metric neighbors above, equivalents below · window ±0.22 mm
Positive difference = cuts a slightly larger hole than 2.8 mm. Sizes
beyond the window are listed with arrows — they are not close substitutes.
Neighboring metric sizes Drill Decimal in mm vs 2.8 mm 2.6 mm 0.1024 2.6 −0.2 mm 2.7 mm 0.1063 2.7 −0.1 mm 2.8 mm 0.1102 2.8 — 2.9 mm 0.1142 2.9 +0.1 mm 3 mm 0.1181 3 +0.2 mm
← 2.7 mm (smaller) 2.9 mm (larger) →
Compare 2.8 mm 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 metric size is 2.8 mm. See all data sources .