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Tap Holder Reference Chart
June 12th, 2012
posted by AutoDrill
TapHolderReferenceChart.pdf
Tap Holder Reference Chart
|
|
| Tap Size |
Decimal Equivalent |
PITCH (threads per in.) |
MM Per Thread |
Threads per mm |
| 1.0mm |
.0393 |
101.60 |
.25 |
4.000 |
| 1.1mm |
.0433 |
101.60 |
.25 |
4.000 |
| 1.2 mm |
.0472 |
101.60 |
.25 |
4.000 |
| 1.4 mm |
.0551 |
84.66 |
.30 |
3.333 |
| #0 |
.0600 |
80 |
|
|
| 1/16″ |
.0625 |
64 |
|
|
| 1.7 mm |
.0669 |
72.56 |
.35 |
2.857 |
| 1.8 mm |
.0708 |
72.56 |
.35 |
2.857 |
| #1 |
.0730 |
64 |
|
|
| #1 |
.0730 |
72 |
|
|
| 2.0 mm |
.0787 |
63.50 |
.40 |
2.500 |
| #2 |
.0860 |
64 |
|
|
| 2.3 mm |
.0905 |
63.50 |
.40 |
2.500 |
| 3/32″ |
.0625 |
64 |
|
|
| #3 |
.0990 |
48 |
|
|
| #3 |
,0990 |
56 |
|
|
| 2.6 mm |
.1023 |
56.43 |
.45 |
2.222 |
| 1/8″ |
.1250 |
40 |
|
|
| #4 |
.1120 |
32 |
|
|
| #4 |
.1120 |
36 |
|
|
| #4 |
.1120 |
40 |
|
|
| #4 |
.1120 |
48 |
|
|
| 3.0 mm |
.1181 |
50.80 |
.50 |
2.000 |
| #5 |
.1250 |
40 |
|
|
| #5 |
.1250 |
44 |
|
|
| 3.5 mm |
.1378 |
42.33 |
.60 |
1.666 |
| #6 |
.1380 |
32 |
|
|
| #6 |
.1380 |
40 |
|
|
| 5/32″ |
.1562 |
32 |
|
|
| 5/32″ |
.1562 |
36 |
|
|
| 4.0 mm |
.1574 |
36.28 |
.70 |
1.428 |
| #8 |
.1640 |
32 |
|
|
| #8 |
.1640 |
36 |
|
|
| #8 |
.1640 |
40 |
|
|
| 4.5 mm |
.1771 |
33.86 |
.75 |
1.333 |
| 3/16″ |
.1870 |
24 |
|
|
| 3/16″ |
.1870 |
32 |
|
|
| #10 |
.1900 |
24 |
|
|
| #10 |
.1900 |
32 |
|
|
| #10 |
.1900 |
30 |
|
|
| 5.0 mm |
.1980 |
31.75 |
.80 |
1.250 |
| #12 |
.2160 |
24 |
|
|
| #12 |
.2160 |
28 |
|
|
| #12 |
.2160 |
32 |
|
|
| 7/32″ |
.2188 |
24 |
|
|
| 7/32″ |
.2188 |
32 |
|
|
| 6.0 mm |
.2326 |
25.4 |
1.00 |
1.00 |
| #14 |
.2420 |
20 |
|
|
| #14 |
.2420 |
24 |
|
|
| 1/4″ |
.2500 |
20 |
|
|
| 1/4″ |
.2500 |
24 |
|
|
| 1/4″ |
.2500 |
28 |
|
|
| 1/4″ |
,2500 |
32 |
|
|
| 7.0 mm |
.2755 |
25.4 |
1.00 |
1.00 |
| 5/16″ |
.3120 |
18 |
|
|
| 5/16″ |
.3120 |
24 |
|
|
| 8.0 mm |
.3149 |
20.32 |
1.25 |
.800 |
| 9.0 mm |
.3543 |
20.32 |
1.25 |
.800 |
| 3/8″ |
.3750 |
16 |
|
|
| 3/8″ |
.3750 |
24 |
|
|
| 10.0 mm |
.3937 |
16.93 |
1.50 |
.666 |
| 11.0 mm |
.4330 |
16.93 |
1.50 |
.666 |
| 7/16″ |
.4370 |
14 |
|
|
| 7/16″ |
.4370 |
20 |
|
|
| 12.0 mm |
.4724 |
14.51 |
1.75 |
.571 |
| 1/2″ |
.5000 |
13 |
|
|
| 1/2″ |
.5000 |
20 |
|
|
| 14.0 mm |
.5510 |
12.70 |
2.00 |
.500 |
| 5/8″ |
.6250 |
11 |
|
|
| 5/8″ |
.6250 |
18 |
|
|
| 16.0 mm |
.6299 |
12.70 |
2.00 |
.500 |
| 11/16″ |
.6870 |
11 |
|
|
| 11/16″ |
.6870 |
16 |
|
|
| 18.0 mm |
.7086 |
10.16 |
2.50 |
.400 |
| 3/4″ |
.7500 |
10 |
|
|
| 3/4″ |
.7500 |
16 |
|
|
| 20.0 mm |
.7870 |
10.16 |
2.50 |
.400 |
| 13/16″ |
.8120 |
12 |
|
|
| 13/16″ |
.8120 |
16 |
|
|
| 13/16″ |
.8120 |
20 |
|
|
| 13/16″ |
.8120 |
28 |
|
|
| 13/16″ |
.8120 |
32 |
|
|
| 22.0 mm |
.8666 |
10.16 |
2.50 |
.400 |
| 7/8″ |
.8750 |
9 |
|
|
| 7/8″ |
.8750 |
14 |
|
|
| 15/16″ |
.9370 |
12 |
|
|
| 15/16″ |
.9370 |
16 |
|
|
| 15/16″ |
.9370 |
20 |
|
|
| 15/16″ |
.9370 |
28 |
|
|
| 15/16″ |
.9370 |
32 |
|
|
| 24.0 mm |
.9448 |
8.46 |
3.00 |
.333 |
| 1.00″ |
1.0000 |
8 |
|
|
| 1.00″ |
1.0000 |
12 |
|
|
| 1.00″ |
1.0000 |
14 |
|
|
| 27.0 mm |
1.0629 |
8.46 |
3.00 |
.333 |
| 1-1/8″ |
1.1250 |
7 |
|
|
| 1-1/8″ |
1.1250 |
12 |
|
|
| 30.0 mm |
1.1810 |
7.25 |
3.50 |
.285 |
| 1-1/4″ |
1.2500 |
7 |
|
|
| 1-1/4″ |
1.2500 |
12 |
|
|
| 33.0 mm |
1.2999 |
7.25 |
3.50 |
.285 |
