|
Diameter
Chart |
The chart below lists the
diameters of commonly available cutters. The color of each
size represents the color of the depth setting ring found on 1/8 in.
shank solid carbide drill bits.
|
| 0.05
mm |
0.0020" |
1.10
mm |
0.0433" |
2.85
mm |
0.1122" |
4.75
mm |
0.1870" |
| 0.10
mm |
0.0040" |
1.15
mm |
0.0453" |
33 |
0.1130" |
3/16" |
0.1875" |
| 0.13
mm |
0.0050" |
56 |
0.0465" |
2.90
mm |
0.1142" |
4.80
mm & 12 |
0.1890" |
| 0.15
mm & 97 |
0.0059" |
1.20
mm |
0.0472" |
32 |
0.1160" |
4.85
mm |
0.1909" |
| 96 |
0.0063" |
1.25
mm |
0.0492" |
2.95
mm |
0.1161" |
11 |
0.1910" |
| 95 |
0.0067" |
1.30
mm |
0.0512" |
3.00
mm |
0.1181" |
4.90
mm |
0.1929" |
| 94 |
0.0071" |
55 |
0.0520" |
31 |
0.1200" |
10 |
0.1935" |
| 93 |
0.0075" |
1.35
mm |
0.0531" |
3.05
mm |
0.1201" |
4.95
mm |
0.1949" |
| 0.20
mm & 92 |
0.0079" |
54 |
0.0550" |
3.10
mm |
0.1220" |
9 |
0.1960" |
| 91 |
0.0083" |
1.40
mm |
0.0551" |
3.15
mm |
0.1240" |
5.00
mm |
0.1968" |
| 90 |
0.0087" |
1.45
mm |
0.0571" |
1/8" |
0.1250" |
5.05
mm |
0.1988" |
| 89 |
0.0091" |
1.50
mm |
0.0591" |
3.20
mm |
0.1260" |
8 |
0.1990" |
| 88 |
0.0095" |
53 |
0.0595" |
3.25
mm |
0.1280" |
5.10
mm |
0.2008" |
| 0.25
mm |
0.0098" |
1.55
mm |
0.0610" |
30 |
0.1285" |
7 |
0.2010" |
| 87 |
0.0100" |
1/16" |
0.0625" |
3.30
mm |
0.1299" |
5.15
mm |
0.2028" |
| 86 |
0.0105" |
1.60
mm |
0.0630" |
3.35
mm |
0.1319" |
6 |
0.2040" |
| 85 |
0.0110" |
52 |
0.0635" |
3.40
mm |
0.1339" |
5.20
mm |
0.2047" |
| 84 |
0.0115" |
1.65
mm |
0.0650" |
3.45
mm |
0.1358" |
5 |
0.2055" |
| 0.30
mm |
0.0118" |
1.70
mm |
0.0669" |
29 |
0.1360" |
5.25
mm |
0.2067" |
| 83 |
0.0120" |
51 |
0.0670" |
3.50
mm |
0.1378" |
5.30
mm |
0.2087" |
| 82 |
0.0125" |
1.75
mm |
0.0689" |
3.55
mm |
0.1398" |
4 |
0.2090" |
| 81 |
0.0130" |
50 |
0.0700" |
28 |
0.1405" |
5.35
mm |
0.2106" |
| 80 |
0.0135" |
1.80
mm |
0.0709" |
3.60
mm |
0.1417" |
5.40
mm |
0.2126" |
| 0.35
mm |
0.0138" |
1.85
mm |
0.0728" |
3.65
mm |
0.1437" |
3 |
0.2130" |
| 79 |
0.0145" |
49 |
0.0730" |
27 |
0.1440" |
5.45
mm |
0.2146" |
| 0.40
mm |
0.0157" |
1.90
mm |
0.0748" |
3.70
mm |
0.1457" |
5.50
mm |
0.2165" |
| 78 |
0.0160" |
48 |
0.0760" |
26 |
0.1470" |
5.55
mm |
0.2185" |
| 0.45
mm |
0.0177" |
1.95
mm |
0.0768" |
3.75
mm |
0.1476" |
5.60
mm |
0.2205" |
| 77 |
0.0180" |
47 |
0.0785" |
25 |
0.1495" |
2 |
0.2210" |
| 0.50
mm |
0.0197" |
2.00
mm |
0.0787" |
3.80
mm |
0.1496" |
5.65
mm |
0.2224" |
| 76 |
0.0200" |
2.05
mm |
0.0807" |
3.85
mm |
0.1516" |
5.70
mm |
0.2244" |
| 75 |
0.0210" |
46 |
0.0810" |
24 |
0.1520" |
5.75
mm |
0.2264" |
| 0.55
mm |
0.0217" |
45 |
0.0820" |
3.90
mm |
0.1535" |
1 |
0.2280" |
| 74 |
0.0225" |
2.10
mm |
0.0827" |
23 |
0.1540" |
5.80
mm |
0.2283" |
| 0.60
mm |
0.0236" |
2.15
mm |
0.0846" |
3.95
mm |
0.1555" |
5.85
mm |
0.2302" |
| 73 |
0.0240" |
44 |
0.0860" |
5/32" |
0.1562" |
5.90
mm |
0.2323" |
| 72 |
0.0250" |
2.20
mm |
0.0866" |
22 |
0.1570" |
5.95
mm |
0.2343" |
| 0.65
mm |
0.0256" |
2.25
mm |
0.0886" |
4.00
mm |
0.1575" |
6.00
mm |
0.2362" |
| 71 |
0.0260" |
43 |
0.0890" |
21 |
0.1590" |
6.05
mm |
0.2382" |
| 0.70
mm |
0.0276" |
2.30
mm |
0.0906" |
4.05
mm |
0.1594" |
6.10
mm |
0.2402" |
| 70 |
0.0280" |
2.35
mm |
0.0925" |
20 |
0.1610" |
6.15
mm |
0.2421" |
| 69 |
0.0292" |
42 |
0.0935" |
4.10
mm |
0.1614" |
6.20
mm |
0.2441" |
| 0.75
mm |
0.0295" |
3/32" |
0.0938" |
4.15
mm |
0.1634" |
6.25
mm |
0.2461" |
| 68 |
0.0310" |
2.40
mm |
0.0945" |
4.20
mm |
0.1654" |
6.30
mm |
0.2480" |
| 0.80
mm |
0.0315" |
41 |
0.0960" |
19 |
0.1660" |
6.35
mm & E |
0.2500" |
| 67 |
0.0320" |
2.45
mm |
0.0965" |
4.25
mm |
0.1673" |
6.40
mm |
0.2520" |
| 66 |
0.0330" |
40 |
0.0980" |
4.30
mm |
0.1693" |
6.50
mm |
0.2559" |
| 0.85
mm |
0.0335" |
2.50
mm |
0.0984" |
18 |
0.1695" |
F |
0.2570" |
| 65 |
0.0350" |
39 |
0.0995" |
4.35
mm |
0.1713" |
6.60
mm |
0.2598" |
| 0.90
mm |
0.0354" |
2.55
mm |
0.1004" |
11/64" |
0.1719" |
6.70
mm |
0.2638" |
| 64 |
0.0360" |
38 |
0.1015" |
17 |
0.1730" |
| 63 |
0.0370" |
2.60
mm |
0.1024" |
4.40
mm |
0.1732" |
| 0.95
mm |
0.0374" |
37 |
0.1040" |
4.45
mm |
0.1752" |
| 62 |
0.0380" |
2.65
mm |
0.1043" |
16 |
0.1770" |
| 61 |
0.0390" |
2.70
mm |
0.1063" |
4.50
mm |
0.1772" |
| 1.00
mm |
0.0394" |
36 |
0.1065" |
4.55
mm |
0.1791" |
| 60 |
0.0400" |
2.75
mm |
0.1083" |
15 |
0.1800" |
| 59 |
0.0410" |
7/64" |
0.1094" |
4.60
mm |
0.1811" |
| 1.05
mm |
0.0413" |
35 |
0.1100" |
14 |
0.1820" |
| 58 |
0.0420" |
2.80
mm |
0.1102" |
4.65
mm |
0.1831" |
| 57 |
0.0430" |
34 |
0.1110" |
4.70
mm & 13 |
0.1850" |
|
|
