BenchReference / Drill sizes / 3/32″ 3/32″ Drill Bit Decimal inches 0.0938″
Millimeters 2.381 mm
System Fractional inch
In 64ths 6/64″
Nearest equivalents in other systems System Nearest drill Size Difference Metric 2.4 mm 0.0945″ / 2.4 mm +0.019 mm (+0.0007″)
Number (wire gauge) #42 0.0935″ / 2.375 mm −0.006 mm (−0.0002″)
Letter A 0.2340″ / 5.944 mm +3.562 mm (+0.1403″)
−0.19 mm +0.19 mm 3/32″ #42 −0.006 mm 2.4 mm +0.019 mm ← 1/16″ −0.794 mm ← 5/64″ −0.397 mm 7/64″ +0.397 mm → 1/8″ +0.794 mm → tick position = true diameter · fractional neighbors above, equivalents below · window ±0.19 mm
Positive difference = cuts a slightly larger hole than 3/32″. Sizes
beyond the window are listed with arrows — they are not close substitutes.
Clearance drill for Neighboring fractional sizes Drill Decimal in mm vs 3/32″ 1/16″ 0.0625 1.587 −0.794 mm 5/64″ 0.0781 1.984 −0.397 mm 3/32″ 0.0938 2.381 — 7/64″ 0.1094 2.778 +0.397 mm 1/8″ 0.1250 3.175 +0.794 mm
← 5/64″ (smaller) 7/64″ (larger) →
Compare 3/32″ 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 0.0938″. See all data sources .