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Jarno Taper Size Chart Table
Jarno tapers have a of taper of about 1:20 on diameter, or .600" on diameter per foot, or .050" on diameter per inch. The large diameter size can be obtained by dividing by 8, the small end is always the taper size divided by 10 and the length is the taper size divided by 2.
Notes:
All dimension data given in inches,
Jarno Taper Shanks | |||||
---|---|---|---|---|---|
Taper Designation |
Length A |
Length B |
Diameter C |
Diameter D |
Taper per foot |
2 | 1 1/8 | 1 | 0.20 | 0.250 | 0.600 |
3 | 1 5/8 | 1 1/2 | 0.30 | 0.375 | 0.600 |
4 | 2 3/16 | 2 | 0.40 | 0.500 | 0.600 |
5 | 2 11/16 | 2 1/2 | 0.50 | 0.625 | 0.600 |
6 | 3 3/16 | 3 | 0.60 | 0.750 | 0.600 |
7 | 3 11/16 | 3 1/2 | 0.70 | 0.875 | 0.600 |
8 | 4 3/16 | 4 | 0.80 | 1.000 | 0.600 |
9 | 4 11/16 | 4 1/2 | 0.90 | 1.125 | 0.600 |
10 | 5 1/4 | 5 | 1.00 | 1.250 | 0.600 |
11 | 5 3/4 | 5 1/2 | 1.10 | 1.375 | 0.600 |
12 | 6 1/4 | 6 | 1.20 | 1.500 | 0.600 |
13 | 6 3/4 | 6 1/2 | 1.30 | 1.625 | 0.600 |
14 | 7 1/4 | 7 | 1.40 | 1.750 | 0.600 |
15 | 7 3/4 | 7 1/2 | 1.50 | 1.875 | 0.600 |
16 | 8 /16 | 8 | 1.60 | 2.000 | 0.600 |
17 | 8 13/16 | 8 1/2 | 1.70 | 2.125 | 0.600 |
18 | 9 5/16 | 9 | 1.80 | 2.250 | 0.600 |
19 | 9 13/16 | 9 1/2 | 1.90 | 2.375 | 0.600 |
20 | 10 5/16 | 10 | 2.00 | 2.500 | 0.600 |