Number drill bit gauge sizes range from size 80 (the smallest) to size 1 (the largest) followed by letter gauge size A (the smallest) to size Z (the largest). Although the ASME B94. 11M twist drill standard, for example, lists sizes as small as size 97, sizes smaller than 80 are rarely encountered in practice.
What is a number 29 drill?
To Tap This Size Screw Or Bolt: Use This Drill Bit: (Closest Fractional:)
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8-32 NC #29 -
8-36 NF #29 9/64"
8-40 NS #28 -
3/16-24 NS #26 -
What size is #19 drill?
Size Decimal Equivalent Size
------ ------------------ -------
.60 mm 0.0236 20
73 0.024 4.10 mm
72 0.025 4.20 mm
.65 mm 0.0256 19
What is 3/16 drill bit in MM?
What size is a 1/8 drill bit in MM?
Drill size Diameter (in) Diameter (mm)
---------- ------------- -------------
3/32 in 0.0938 2.3813
7/64 in 0.1094 2.7781
1/8 in 0.1250 3.1750
9/64 in 0.1406 3.5719
28mm which are both 0.0110 inches in diameter, the 13 and the 4.7mm which are both 0.1850 inches in diameter, the 4.8mm and the 12 which are both 0.1890 inches in diameter, and the 1/4 inch and letter E bits which are both 0.250 inches in diameter.