BenchReference

#48 Drill Bit

Decimal inches 0.0760″
Millimeters 1.93 mm
System Number (wire gauge)

Nearest equivalents in other systems

System Nearest drill Size Difference
Metric 1.9 mm 0.0748″ / 1.9 mm −0.03 mm (−0.0012″)
Fractional inch 5/64″ 0.0781″ / 1.984 mm +0.054 mm (+0.0021″)
Letter A 0.2340″ / 5.944 mm +4.013 mm (+0.1580″)
−0.154 mm+0.154 mm#48#50−0.152 mm#49−0.076 mm#47+0.064 mm#46+0.127 mm1.9 mm−0.03 mm5/64″+0.054 mmA +4.013 mm →tick position = true diameter · number neighbors above, equivalents below · window ±0.15 mm
Positive difference = cuts a slightly larger hole than #48. Sizes beyond the window are listed with arrows — they are not close substitutes.

Clearance drill for

Thread Fit
#0-80 UNF normal

Neighboring number sizes

Drill Decimal in mm vs #48
#50 0.0700 1.778 −0.152 mm
#49 0.0730 1.854 −0.076 mm
#48 0.0760 1.93 —
#47 0.0785 1.994 +0.064 mm
#46 0.0810 2.057 +0.127 mm
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 number size is 0.0760″. See all data sources.