Drill Bit Conversion Chart Page 3
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1
2
3Drill
Drill
Drill
Drill
Inch
Inch
Inch
Inch
Size,
Size,
Size,
Size,
Equivalent
Equivalent
Equivalent
Equivalent
mm
mm
mm
mm
1
.0394"
2.7
.1063"
5.9
.2323"
9.1
.3583"
1.05
.0413"
2.8
.1102"
6
.2362"
9.2
.3622"
1.1
.0433"
2.9
.1142"
6.1
.2402"
9.3
.3661"
1.15
.0453"
3
.1181"
6.2
.2441"
9.4
.3701"
1.2
.0472"
3.1
.1220"
6.3
.2480"
9.5
.3740"
1.25
.0492"
3.2
.1260"
6.4
.2520"
9.6
.3780"
1.3
.0512"
3.3
.1299"
6.5
.2559"
9.7
.3819"
1.35
.0531"
3.4
.1339"
6.6
.2598"
9.8
.3858"
1.4
.0551"
3.5
.1378"
6.7
.2638"
9.9
.3898"
1.45
.0571"
3.6
.1417"
6.8
.2677"
10
.3937"
1.5
.0591"
3.7
.1457"
6.9
.2717"
10.2
.4016"
1.55
.0610"
3.8
.1496"
7
.2756"
10.5
.4134"
1.6
.0630"
3.9
.1535"
7.1
.2795"
10.8
.4252"
1.65
.0650"
4
.1575"
7.2
.2835"
11
.4331"
1.7
.0669"
4.1
.1614"
7.3
.2874"
11.2
.4409"
1.75
.0689"
4.2
.1654"
7.4
.2913"
11.5
.4528"
1.8
.0709"
4.3
.1693"
7.5
.2953"
11.8
.4646"
1.85
.0728"
4.4
.1732"
7.6
.2992"
12
.4724"
1.9
.0748"
4.5
.1772"
7.7
.3031"
12.2
.4803"
1.95
.0768"
4.6
.1811"
7.8
.3071"
12.5
.4921"
2
.0787"
4.7
.1850"
7.9
.3110"
13
.5118"
2.05
.0807"
4.8
.1890"
8
.3150"
13.5
.5315"
2.1
.0827"
4.9
.1929"
8.1
.3189"
14
.5512"
2.15
.0846"
5
.1968"
8.2
.3228"
14.5
.5709"
2.2
.0866"
5.1
.2008"
8.3
.3268"
15
.5906"
2.25
.0886"
5.2
.2047"
8.4
.3307"
15.5
.6102"
2.3
.0906"
5.3
.2087"
8.5
.3346"
16
.6299"
2.35
.0925"
5.4
.2126"
8.6
.3386"
16.5
.6496"
2.4
.0945"
5.5
.2165"
8.7
.3425"
17
.6693"
2.45
.0965"
5.6
.2205"
8.8
.3465"
17.5
.6890"
2.5
.0984"
5.7
.2244"
8.9
.3504"
2.6
.1024"
5.8
.2283"
9
.3543"
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